T-H Marine Thru-Hull Black 1-1/2" #TH-1500-DP

T-H Marine TH-1500-DP Thru-Hull FittingsThe T-H Marine TH-1500-DP is a 1-1/2 in. straight thru-hull fitting in black, sized for higher-flow applications like bilge pump discharge, livewell drain, and aeration plumbing on bass boats, fiberglass hulls, and aluminum fishing rigs. At 1-1/2 in., this is one of the larger common thru-hull sizes, so it is typically found on setups where moving water fast matters more than saving space.The fitting is molded from UV-stabilized virgin plastic, which keeps it from going chalky or brittle after a few seasons baking in the sun. The hose barb is sized to grip 1-1/2 in. ID hose firmly without needing extra clamps to keep things snug, though a stainless clamp is never a bad idea on a discharge line. The single-nut design threads through the hull panel from the outside and locks down from the interior, giving you a watertight seal against the hull surface.T-H Marine is the go-to thru-hull supplier for more U.S. OEM boat builders than any other brand, and the TH-1500-DP shows up on a wide range of production boats straight from the factory. If you are replacing an existing fitting or upgrading a plumbing run, this is a reliable, direct-fit option that installs without drama. Normalized SKU: TH1500DP UPC Code: 733572031003