Air Check Valves

Three (3) Way 

Two (2) Way 

Straight 

SC1, SC2 

Panel Mount. 

Universal Truck, Tractor & Trailer 

1/2 in. NPT (Female) 

1/2 in. NPT (Male) 

1/4 in. NPT (Male) 

3/8 in. NPT (Male) 

Aftermarket (New) 

New 

AD-9 

ADB22X 

DC-4 

SC-1 

SC-3 

1/4 NPT 

3/8-18 NPTF 

1/2 NPT 

1/2 NPT (Female) 

1/4 NPT 

1/4 NPT (Female) 

3/8 NPT (Female) 

No 

Diaphragm 

Shuttle 

Brass 

All Dryers 

Coalescing version of System Saver 1200 and TWIN air dryer cartridge; also works on other spin-on dryer applications. Removes 99.9% of oil and particulate allowed downstream. Cartridge life up to 2 years in standard service applications and 1 year in severe service applications. 

Universal Truck & Tractor 

Universal Truck, Tractor & Trailer 

Vacuum Booster Check Valve Kit