2-1/2″ Bronze Thru-Hull Fitting with NutHigher flow rates are possible with this 2-1/2″ GROCO thru-hull fitting than conventional thru-hulls.Features:NPSM / NPT combination threadC83600 BronzeUL listed 647BIncludes nutBSPP and stainless steel models are availableSpecifications:Thread NPS: 2-1/2″ Specifications:Hose Size: 2-1/2″Material: BronzeBox Dimensions: 5″H x 5″W x 5″L WT: 3.2 lbsUPC: 742985064157