CompreVac supplies a complete range of Kits, Accessories and Oil for Welch Laboratory Vacuum pumps.
Full Interactive Catalog
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Full Interactive Catalog
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SealantFor over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years of experience have a..
CAD$471.00 CAD$414.48
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SealantFor over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years of experience have a..
CAD$95.00 CAD$83.60
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Welch Laboratory Pumps Stopcock Valve Kit, Quarter Turnbr>Pump Range Interactive Catalog(this file will open in a new browser tab)Last Updated 102025..
CAD$74.00 CAD$68.08
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Welch Laboratory Pumps Welch Exhaust Filter with Coalesced Oil Drainback Feature, NW16br>Pump Range Interactive Catalog(this file will open in a new b..
CAD$856.00 CAD$787.52
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Welch Laboratory Pumps Welch Exhaust Filter with Coalesced Oil Drainback Feature, NW25br>Pump Range Interactive Catalog(this file will open in a new b..
CAD$1,091.00 CAD$1,003.72
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Hex Hd Screw 10-32 X 1For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years of ex..
CAD$11.00 CAD$9.68
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Fil Hd Steel Screw 8/32 X 1/4For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These year..
CAD$11.00 CAD$9.68
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Fil Head Iron Screw 10-32X1/4For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These year..
CAD$11.00 CAD$9.68
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F Hd Stl Mach Screw 10-32X5/16For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These yea..
CAD$11.00 CAD$9.68
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Fil Head Iron Screw 10-32X3/8For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These year..
CAD$11.00 CAD$9.68
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Fil Head Iron Screw 10-32X5/8For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These year..
CAD$11.00 CAD$9.68
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Screw 6-32X5/8 Socket HeadFor over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years o..
CAD$9.00 CAD$7.92
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Screw Socket HdFor over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years of experienc..
CAD$5.00 CAD$4.40
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Cap ScrewFor over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years of experience have..
CAD$7.00 CAD$6.16
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Soc Hd Stl Cap Screw 10-32X1/2For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These yea..
CAD$7.00 CAD$6.16
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Soc Hd Scrw Stl 10/32 X 3/4For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years ..
CAD$7.00 CAD$6.16
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Soc Hd Stl Screw 10/32 X 1For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years o..
CAD$7.00 CAD$6.16
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Screw, Socket Head 10-32 X 5/8For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These yea..
CAD$5.00 CAD$4.40
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Screw Steel Soc 10-32 X 7/8For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years ..
CAD$5.00 CAD$4.40
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Hx Hd Stl Cap Screw 3/4-20X1/2For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These yea..
CAD$7.00 CAD$6.16
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Hx Hd Stl Cap Screw 1/4-20X3/4For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These yea..
CAD$7.00 CAD$6.16
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Screw SteelFor over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years of experience ha..
CAD$7.00 CAD$6.16
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H Hd Irn Cp Screw 1/4-20X1-1/4For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These yea..
CAD$9.00 CAD$7.92
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Hx Hd Stl Cp Screw 5/16-18X1/2For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These yea..
CAD$7.00 CAD$6.16
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Screw Steel 5/16-18 X 3/4"For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years o..
CAD$7.00 CAD$6.16
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Hx Hd Iron Cap Screw 5/16-18X1For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These yea..
CAD$7.00 CAD$6.16
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H Hd Irn Cp Scrw 5/16-18X1-1/8For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These yea..
CAD$7.00 CAD$6.16
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-12 %
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Steel Cap Screw 5/16 X 11/4For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years ..
CAD$7.00 CAD$6.16
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H Hd Irn Cp Scrw 5/16-18X1-1/2For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These yea..
CAD$7.00 CAD$6.16
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-12 %
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Hex Hd Stl Cap Screw 5/16-18X2For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These yea..
CAD$7.00 CAD$6.16
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Hex Hd Capscrew 5/16X18X2 3/4For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These year..
CAD$7.00 CAD$6.16
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H Hd Irn Cp Scrw 5/16-18X3-1/2For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These yea..
CAD$7.00 CAD$6.16
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-12 %
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Rd Head Steel Screw 1/4-20X3/8For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These yea..
CAD$15.00 CAD$13.20
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Allen Head Cp Screw 1/4-20X3/4For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These yea..
CAD$9.00 CAD$7.92
Online Special $
-12 %
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Soc Hd Stl Cp Screw 1/4-20X7/8For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These yea..
CAD$15.00 CAD$13.20
Online Special $
-12 %
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Soc Hd Stl Screw 1/4-20 X 1For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years ..
CAD$15.00 CAD$13.20
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Soc Hd Irn Cp Scrw 5/16-18X3/4For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These yea..
CAD$15.00 CAD$13.20
Online Special $
-12 %
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Soc Hd Stl Cp Scrw 5/16-18X7/8For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These yea..
CAD$15.00 CAD$13.20
Online Special $
-12 %
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H Hd Irn Cp Scrw 5/16-18X1-1/4For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These yea..
CAD$15.00 CAD$13.20
Online Special $
-12 %
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Soc Hd Stl Screw 5/16-18X1 1/2For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These yea..
CAD$15.00 CAD$13.20
Online Special $
-12 %
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Soc Hd Screw 3/8-16X7/8For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years of e..
CAD$15.00 CAD$13.20
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-12 %
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Screw Stl Soc 3/8-16X1For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years of ex..
CAD$7.00 CAD$6.16
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Screw Set Ss 1/4-20 X 1-3/4For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years ..
CAD$15.00 CAD$13.20
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Hdless Iron Set Screw 1/4-20X2For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These yea..
CAD$15.00 CAD$13.20
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-12 %
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Hex Head Set Screw 5/16-18X3/8For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These yea..
CAD$15.00 CAD$13.20
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-12 %
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Rdhd Stl Slftap Scrw 10-32X1/2For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These yea..
CAD$15.00 CAD$13.20
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-12 %
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Screw, Philips Hd #8-32 X 5/16For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These yea..
CAD$7.00 CAD$6.16
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10-32X1/4 Truss Hdms 18-8For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years of..
CAD$7.00 CAD$6.16
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Soc Hd Capscrew 1/4X20-1 1/4For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years..
CAD$15.00 CAD$13.20
Online Special $
-12 %
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Hex Nut 10-32X3/8X1/8For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years of exp..
CAD$15.00 CAD$13.20
Online Special $
-12 %
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Hex Steel Nut 3/16X1/4-20X7/16For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These yea..
CAD$15.00 CAD$13.20
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-12 %
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Jam Nut 1/2-13For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years of experience..
CAD$15.00 CAD$13.20
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Hex Nut 5/16-18For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years of experienc..
CAD$7.00 CAD$6.16
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LocknutFor over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years of experience have a..
CAD$7.00 CAD$6.16
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-12 %
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Ss Nut ScrewFor over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years of experience h..
CAD$7.00 CAD$6.16
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Iron Washer 3/16 In Bolt SizeFor over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These year..
CAD$7.00 CAD$6.16
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-12 %
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Iron Washer 5/16 In Bolt SizeFor over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These year..
CAD$7.00 CAD$6.16
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Stl Washer .071X3/8 Idx5/8 OdFor over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These year..
CAD$7.00 CAD$6.16
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Steel WasherFor over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years of experience h..
CAD$7.00 CAD$6.16
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Iron Washer 1/4 Bolt SizeFor over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years of..
CAD$7.00 CAD$6.16
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Lock Washer Stl Split No. 6For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years ..
CAD$7.00 CAD$6.16
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-12 %
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Lock Washer No. 10For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years of experi..
CAD$7.00 CAD$6.16
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Lock Washer 1/4-20 BoltFor over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years of e..
CAD$9.00 CAD$7.92
Online Special $
-12 %
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Lock WasherFor over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years of experience ha..
CAD$7.00 CAD$6.16
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-12 %
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Split Stl Lock Washer 3/8 BoltFor over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These yea..
CAD$7.00 CAD$6.16
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LockwasherFor over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years of experience hav..
CAD$7.00 CAD$6.16
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-12 %
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Shakeprf Stl Lock Washer No.10For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These yea..
CAD$7.00 CAD$6.16
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-12 %
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Washer, S.S. #8For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years of experienc..
CAD$5.00 CAD$4.40
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Split Lockwasher #8For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years of exper..
CAD$7.00 CAD$6.16
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Washer S SFor over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years of experience hav..
CAD$7.00 CAD$6.16
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Flat Washer Ss 1/2Bolt-1 1/16For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These year..
CAD$7.00 CAD$6.16
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Split Lockwasher 1/4 Bolt S.S.For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These yea..
CAD$7.00 CAD$6.16
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Brass Washer Small No. 10For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years of..
CAD$7.00 CAD$6.16
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Brass Washer Large No. 10For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years of..
CAD$7.00 CAD$6.16
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Welch Laboratory Pumps Kit-Diaphragm Replacement 2019Pump Range Interactive Catalog(this file will open in a new browser tab)Last Updated 102025..
CAD$164.00 CAD$150.88
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Welch Laboratory Pumps 2019 Major Rebuild KitPump Range Interactive Catalog(this file will open in a new browser tab)Last Updated 102025..
CAD$418.00 CAD$384.56
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Welch Laboratory Pumps KIT 2034, 2037, 2044 TWO HEAD SERVICE KITPump Range Interactive Catalog(this file will open in a new browser tab)Last Updated 1..
CAD$1,225.00 CAD$1,127.00
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Welch Laboratory Pumps KIT 2032, 2042, 2047 TWO HEAD SERVICE KITPump Range Interactive Catalog(this file will open in a new browser tab)Last Updated 1..
CAD$1,216.00 CAD$1,118.72
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-10 %
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Welch Laboratory Pumps Al-Head Diaphragm Pump, 230V, 6 torr, 174 L/minbr>Pump Range Interactive Catalog(this file will open in a new browser tab)Last ..
CAD$8,979.00 CAD$8,126.00
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Welch Laboratory Pumps CRVpro 2, 115V,60Hz 1Ph, NW16 w/5/8-3/4" Hose barb w/US plugbr>Pump Range Interactive Catalog(this file will open in a new brow..
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Welch Laboratory Pumps CRVpro 2, 230V,60Hz 1Ph, NW16 w/5/8-3/4" Hose barb w/US plugbr>Pump Range Interactive Catalog(this file will open in a new brow..
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Welch Laboratory Pumps CRVpro 16, 115V,60Hz 1Ph, NW25 w 3/4" Flare Fitting for Refrigeration Dutybr>Pump Range Interactive Catalog(this file will open..
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Welch Laboratory Pumps CRVpro 30, 220-240V, 60Hz, 1Ph,NW25 w/5/8" to 3/4" ID Hose Barb. UK, Schuko and US plugs. br>Pump Range Interactive Catalog(thi..
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Retaining RingFor over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years of experience..
CAD$15.00 CAD$13.20
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Dowel Pin 1/8 Dia X 3/8For over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years of e..
CAD$7.00 CAD$6.16
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-12 %
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Steel BallFor over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years of experience hav..
CAD$7.00 CAD$6.16
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-12 %
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Steel BallFor over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years of experience hav..
CAD$7.00 CAD$6.16
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-12 %
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Envelopes Dust CapFor over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years of experi..
CAD$11.00 CAD$9.68
Online Special $
-8 %
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Welch Laboratory Pumps Tool kit for MP/MPC: Spanner, 4mm Key, 17mm Wrenchbr>Pump Range Interactive Catalog(this file will open in a new browser tab)La..
CAD$164.00 CAD$150.88
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-12 %
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Clock Spring Spacer For ShaftFor over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These year..
CAD$15.00 CAD$13.20
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-12 %
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Cap PlugFor over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years of experience have ..
CAD$7.00 CAD$6.16
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-12 %
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Gasket-Intake Chamber CoverFor over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years ..
CAD$7.00 CAD$6.16
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-12 %
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Paper Gasket-Intake ChamberFor over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years ..
CAD$15.00 CAD$13.20
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Gasket For Oil CaseFor over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years of exper..
CAD$17.00 CAD$14.96
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Washer For Intake NippleFor over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years of ..
CAD$11.00 CAD$9.68
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-12 %
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WasherFor over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years of experience have al..
CAD$19.00 CAD$16.72
Online Special $
-12 %
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Pulley 2.4In O.D. 1/2In BoreFor over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years..
CAD$89.00 CAD$78.32
Online Special $
-12 %
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Pulley 2.4 In O.D. 5/8 In BoreFor over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These yea..
CAD$89.00 CAD$78.32
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-12 %
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SealFor over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years of experience have allo..
CAD$27.00 CAD$23.76
Online Special $
-12 %
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Rubber Shock Mounts For BaseFor over 100 years, Welch has been supplying vacuum pumps to fulfill your laboratory vacuum application needs. These years..
CAD$31.00 CAD$27.28