PR-18 
JB Industries 
Replacement Valves for Pump Cartridge.
For The JB Vacuum Pumps.

JB Industries Replacement valve for pump cartridge s/n 0107 and up DV-85N DV142N DV200N-DV285N.

Kit For 3-4-5-6-7 Cfm

Note: Can Not Be Used On Dv-142s With 6 Digit Serial Nos And Dv-200ns With Serial Nos Prior To 0796

Includes:

1, Exhaust Valve

1, Exhaust Valve Retainer

1, Exhaust Valve Spacer

1, Intake Relief Valve

1, Intake Relief Valve Retainer