Couplings are plastic, which is lighter in weight than metal cam-and-groove hose couplings. They consist of a plug and a socket that connect and disconnect quickly. Use them if you need frequent access to a line. To connect, insert the plug into the socket and push the levers down.

Keep moisture, dirt, and debris from entering your oil reservoirs.

Seal tube and hose fittings to keep their straight threads protected from contaminants during fabrication and storage.

Tapered prongs or a snap-in ring securely hold these plugs in place.

The wings on these plugs expand against the sides of a hole to lock them in place.