Sale GROCO 4" Bronze High Speed Thru-Hull Fitting w/Nut HSTH-4000-W 4" Bronze High Speed Thru-Hull Fitting w/Nut Features:Designed for increased flow compared to standard Thru Hulls and with less dragNPSM / NPT combination threadC83600 Bronze MSRP: $910.00 Was: Now: $791.30
