Watertight Locking Fill Caps

Model FF, Watertight Locking Fill Cap - Assembly consists of a solid cast iron body with malleable iron hasp. The brass cover is gasketed to provide a waterproof seal. The body threads directly on to the line while the cap threads onto the body.

Enviro Design Products: Grip-N-Lock Well monitoring Cap, 2 Yellow

Enviro Design Products: Grip-N-Lock Well monitoring Cap, 2' Yellow

Watertight Flush Fill Caps

Boshart Industries, 12 Aluminum, Watertight, Vermin Proof

4'' Watertight Enclosure Tubes – Marine Thinking

Watertight Enclosure End Caps - 4 Complete Series – Sea Outpost

When you need to replace your oil tank's fill cap consider using the OEM 2 in. Locking Oil Fill Cap. This 2 in. female NPT locking is made of black

OEM 2 in. Locking Oil Fill Cap

Atkinson Locking Filler Cap - Atkinson Equipment Ltd

Snap Cap - ENVCO Global

Camlock & Dust Caps