Check Valve Rebuild Kit #484/684

This CR-2 kit rebuilds the integrated check valve on Mazzei #484 and #684 venturi injectors, restoring a worn or leaking valve without replacing the injector body.

What's Included

• Teflon (PTFE) ball
• Kel-F (PCTFE) seat/seal ring
• Hastelloy-C spring

Compatibility

• Mazzei Injector #484 and #684
• Mazzei Injector #384, #384X, #584, #584C, #484A, #484X, #784
• Does not fit C83-P PP/PVDF, old-style 1.0" injectors, new-style 1.0"/1.5" injectors, or models 878, 885X, 978, 1078, 1583A, 1584A

1.0" and 1.5" Mazzei injectors use the CR-3 or CR-4 kits, not CR-2.