Made of injection molded plastic. Fitting is 2-1/4" in diameter and mounts in 1-1/4" diameter hole with three countersunk screws. Barbed hose fitting connects to 3/4" I.D. hose.WASH DOWN FITTING (T-H MARINE)SKU: 7.33572E+11$37.19PriceQuantityAdd to CartFeaturesColorBlack