Thru-Hull Fittings

T-M Marine 90-Degree Cockpit Scupper Drain - White [CSD-92-DP]

90-Degree Cockpit Scupper Drain - WhiteThis cockpit scupper drain is an affordable and durable solution for draining areas below the waterline. Made from high-strength, UV-stabilized polymer, it...

GROCO 1-1/2" Slotted Hi Speed Thru-Hull w/Nut [HSSLTH-1500-W]

1-1/2" Slotted Hi Speed Thru-Hull with NutFeatures:

GROCO 1-1/4" Slotted Hi Speed Thru-Hull w/Nut [HSSLTH-1250-W]

1-1/4" Slotted Hi Speed Thru-Hull with NutFeatures:

GROCO 1" Slotted Hi Speed Thru-Hull w/Nut [HSSLTH-1000-W]

1" Slotted Hi Speed Thru-Hull with NutFeatures:

GROCO 3/4" Slotted Hi Speed Thru-Hull w/Nut [HSSLTH-750-W]

3/4" Slotted Hi Speed Thru-Hull with NutFeatures:

Forespar Pro Series Valve Stainless Steel Capped Thru-Hull Fits 1-1/2"-2" [930003SS]

Pro Series Valve Stainless Steel Capped Thru-Hull Fits 1-1/2"-2"Thru-hull only for small Pro Series valves; mushroom head, buttress thread Specifications:Hose Size: 2"Material: PlasticBox...

Forespar Pro Series Valve Stainless Steel Capped Thru-Hull Fits 1"-1-1/4" [930002SS]

Pro Series Valve Stainless Steel Capped Thru-Hull Fits 1"-1-1/4"Thru-hull only for small Pro Series valves; mushroom head, buttress thread Specifications:Hose Size: 1-1/4"Material: PlasticBox...

Forespar Pro Series Valve Stainless Steel Capped Thru-Hull Fits 1/2"-3/4" [930001SS]

Pro Series Valve Stainless Steel Capped Thru-Hull Fits 1/2"-3/4"Thru-hull only for small Pro Series valves; mushroom head, buttress thread Specifications:Hose Size: 3/4"Material: PlasticBox...

Sea-Dog Thru-Hull w/Scupper Valve - Injection Molded Acetel [520510-1]

Thru-Hull with Scupper Valve - Injection Molded AcetelThis Thru-Hull Scupper Valve mounts through the transom and provides a water exit for boats with self-bailing cockpits. Ideal for above the...

GROCO 3" Bronze Thru-Hull Fitting w/Nut [TH-3000-W]

3" Bronze Thru-Hull Fitting with NutHigher flow rates are possible with this 3" GROCO thru-hull fitting than conventional thru-hulls.Features:NPSM / NPT combination threadC83600 BronzeUL listed...

GROCO 2-1/2" Bronze Thru-Hull Fitting w/Nut [TH-2500-W]

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...

Attwood White Plastic 90 Degree Thru-Hull Connector - 1-1/8" Inner Diameter [3879-3]

White Plastic 90 Degree Thru-Hull Connector - 1-1/8" Inner Diameter90° Thru-Hulls are ideal for tight installations, such as livewell overflow drains. The angled design also eliminates hose kinking...