Home Plumbing Pipe Fittings TH Series Thru-Hull Connector with Nut (Thread NPS 2”) Groco TH Series Thru-Hull Connector with Nut (Thread NPS 2”) $92.59 TH Series Thru-Hull Connector with Nut (Thread NPS 2”) quantity Add to cart Product Details Product Details Thread NPS: 2″. Flange OD: 3.33″. Max Hull Thickness: 3.90″. NPSM / NPT combination thread. C83600 Bronze. Includes nut. UL LIsted 647B.
