Description: Our Thru-Hulls are meant for installation through the transom and are good for overflow use in livewell installations or as an exhaust port for a bilge pump Their construction is designed to resist degradation as a result of chemical and saltwater exposure. Molded plastic construction with broad flange Provides trouble-free hose connections Meets ABYC safety standards for small boats Specification: This fitting should be used above the waterline Color: White For 1" ID hose Height: 9cm / 3.54 inch Top diameter 6.6cm / 2.59 inch Bottom diameter 2.5cm / 0.98 inch Package Includes: 1 Piece Plastic Thru-Hull Hose Fitting