Thread: "UNF" (Fine thread) type are straight, non-sealing threads that rely on an O-ring to provide a seal. "NPT" (Pipe thread) type are tapered thread that seal as they are tightened. Others are metric threads. Measure the O.D. of the thread on the valve you are replacing and compare to the thread specifications table to determine the correct thread size.
Open Action: "Spiral" valves require a push and turn action to open. "Push" valves require a push action to open.
Hose Adapter Size: A hose may be attached to the valves for ease of draining. The size indicated is the hose I.D.

SAF-AIR Lock Open Oil Drain Valves
High Quality, Low Price! 

Changing hot engine oil has never been easier! No wrench is needed to remove the drain plug. A simple push and turn locks it in the open position. Manufactured from anodized aluminum and stainless steel components, providing strength and durability.

• Push and turn to lock open 
• Effortless operation with sure grip knob
• Double sealed to prevent leakage
• Maintenance Tips

All valves can be rebuilt. Find the replacement O-ring kit for your SAF-AIR valve: O-Ring Kits.

All SAF-AIR O-rings are made of Viton.