Thru Hull

GROCO IBV Series bronze inline valves offer full-flow, PTFE seals, UL fuel/water rating, grease zerk (1-1/4"+), and a ratchet-ready handle for tight spaces.

GROCO PTHC Series NPT 90° bronze adapters, standard flow, sizes 1/2"–5", UL Listed 647B, not NSF-61 compliant, not for potable water.

TruDesign Tails eliminate the corrosion and electrical bonding problems associated with metallic fittings. Tail fittings are designed for twin hose clamps, and to never crush.

GROCO PTH Series Bronze Pipe-to-Hose Adapter. Heavy-duty C83600 bronze male NPT fitting with an extended deep-ridge barb for secure, leak-free marine plumbing.

Groco Bronze Full-Flow Threaded Pipe-to-Hose Barb Adapter. Corrosion-resistant C83600 bronze fitting with extended deep-ridges for secure dual hose clamping.

Perko Thru Hull 1" Bronze

Perko, Bronze Thru-Hull Fitting.

Perko 322 DP5 PLB. THRU HULL CONN 3/4