Model has an O-ring that is captured in a brass poppet to seal on a brass seat in the check valve body

The overall holder is 5 inches tall and extends 4-3/8 inches from the mounting surface

the unit requires a rough opening that measures 15-3/4 inches in length by 54-1/2 inches in height by 7-1/4 inches in depth

Shaft Length: 1 7/16 in

durable metal hinges are utilized

CLR Calcium, Lime and Rust Remover, 1 gal. Cleaner Container Size, Jug Cleaner Container Type - G-CL-4 Nominal Size-29" X 1.25" Model has an O-ring thatDissolves tough calcium and lime deposits and removes surface rust stains without rubbing or scrubbing. Phosphate free formula is septic safe. USDA Certified biobased product 80%.