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Compressor Overhaul Kits

Over time components wear, which reduces the pressure produced by the compressor to a level below that necessary for the concentrator to operate correctly. The component that most frequently fails first is the cup on the piston, as it is constantly wearing against the wall of the cylinder. Cups can be purchased individually for roughly $5 - $7 each. More extensive overhaul kits include replacement reed valve, cylinder liners and gaskets. These kits range in price from $40 - $50.

Note - ALL SPEC BELOW ARE FOR 220/230V COMPRESSORS (115V compressors have different performance)

Thomas 2450


  • Max flow 3 cfm / 84.9 l/min

  • Max Pressure 30 psi / 2.07 bar

Thomas 2619 & 2639



Thomas 2650 & 2660

Thomas 2669

GSE ZW75

Max Flow ?? cfm / ?? lpm

Max Pressure ?? psi / ?? bar

Data sheet: ??

GSE ZW280

Max Flow 3.3 cfm / 94 lpm

Max Pressure 73 psi / 5 bar

Data sheet: http://www.gseint.com/wp-content/uploads/2020/12/ZW280-product-sheet-20201208.pdf

GSE ZW370

Max Flow 3.6 cfm / 102 lpm

Max Pressure 102 psi / 7 bar

Data sheet: http://www.gseint.com/wp-content/uploads/2020/12/ZW370-Product-sheet-20201208.pdf

GSE ZW400

Max Flow 4.94 cfm / 140 lpm

Max Pressure 44 psi / 3 bar

Data sheet: http://www.gseint.com/wp-content/uploads/2019/05/ZW400-3rd-Gen-Product-sheet-20210210.pdf

ZW140/A-2

Max Flow ?? cfm / ?? lpm

Max Pressure ?? psi / ?? bar

Data sheet: <Waiting for link from manufacturer>