Beckson screw-out plates provide access without the use of tools, with a single start, non-jamming (no cross-thread), extra strong, self-cleaning buttress thread. They incorporate a self-aligning center and an innovative gasket to assure a watertight seal. A unique back-up sealing wall leaves the plate water resistant, even if the gasket is removed.
- ID : 4"
- OD : 6-1/8"
- Hole : 4-1/2"
- Color : Black, white or clear.
- Center : Smooth
Note : Product usually ships in 2-3 business days