Marine Plumbing & Ventilation > Thru-Hull Fittings
3″ Bronze Thru-Hull Fitting with Nut Higher flow rates are possible with this 3″ GROCO thru-hull fitting than conventional thru-hulls. Features: NPSM / NPT combination thread C83600 Bronze UL listed 647B Includes nut BSPP and stainless steel models are available Specifications: Thread NPS: 3″
Marine Plumbing & Ventilation > Thru-Hull Fittings
2-1/2″ Bronze Thru-Hull Fitting with Nut Higher flow rates are possible with this 2-1/2″ GROCO thru-hull fitting than conventional thru-hulls. Features: NPSM / NPT combination thread C83600 Bronze UL listed 647B Includes nut BSPP and stainless steel models are available Specifications: Thread NPS: 2-1/2″