O-ring rebuild kit + POPPET SEAL CN-220-3 for all Duo-Fast CN-350 and CN-325.
Including:
CN-325, CN-325B
CN-350A, B, BC, B-SH
Rebuilding Video bottom of the page

Full Kit also available on eBay

If it’s a CN-325 or CN350 and with any letter combination, this kit will work
Kit includes the Cylinder Seal #CN-220-3 Poppet Seal AKA 408211 and the trigger O-rings for the trigger leaks these guns are known for.
Duo-Fast CN350 O-ring + Cylinder Seal CN-220-3
Duo-Fast CN350 O-ring + Cylinder Seal CN-220-3
CN350 O-ring Kit + Cylinder Seal #cn-220-3
Schematic + O-ring Reference Sheet
Available Qty: 9
Price: $21.95
Quantity:  
POPPET SEAL CN-220-3 only
Duo-Fast Poppet Seal CN-220-3 for CN350 CN325
Duo-Fast Poppet Seal CN-220-3 for CN350 CN325
Aftermarket Poppet Seal
Part # CN-220-3
For Duo-Fast
CN-325B, CN-350A
CN-350B, CN-350B-C
CN-350B-SH, CN-350B-SP-215
CN-350B-SP-325, CN-400A
CN-400B, CN350-B
DCN-325-85L
Available Qty: 15
Price: $17.75
Quantity:  
POPPET EXHAUST SEAL CN-120-3 only
Duo-Fast Poppet Exhaust Seal CN-120-3
Duo-Fast Poppet Exhaust Seal CN-120-3
Aftermarket Duo-fast poppet exhaust seal
for models
CN-325B, CN-350A
CN-350B, CN-350B-C
CN-350B-SH, CN-350B-SP-215
CN-350B-SP-325, CN-400A
CN-400B, CN350-B
DCN-325-85L, RCN-70-275A
RCN-70-60A
350
Available Qty: 8
Price: $5.95
Quantity:  

 
RK-200 cn120-3 cn220-3 cn-220-3