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Thru-Hull Installation Tool Thru Hull Installation ToolThe Concept:THT-530 makes the installation of standard GROCO thru-hull fittings possible by...

1-1/2" NPT Bronze 45 Degree Pipe to 1-1/2" Hose Features: 45 degree Male NPT x Hose connection C83600 Bronze Standard Flow UL Listed 647B Note- C8...

1-1/2" Slotted Hi Speed Thru-Hull with NutFeatures: 1-1/2" NPSM / NPT combination thread C83600 Bronze With Nut Slotted

1" Slotted Hi Speed Thru-Hull with NutFeatures: 1" NPSM / NPT combination thread C83600 Bronze With Nut Slotted

1-1/4" Slotted Hi Speed Thru-Hull with NutFeatures: 1-1/4" NPSM / NPT combination thread C83600 Bronze With Nut Slotted

3/4" Slotted Hi Speed Thru-Hull with NutFeatures: 3/4" NPSM / NPT combination thread C83600 Bronze With Nut Slotted

2-1/2" Bronze Tri-Flanged Ball Valve/SeacockFeatures: 1-1/4" sizes and larger include one grease zerk fitting for lubrication (use only with the v...

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.Featu...

Pump Service KitService kit for GROCO SPO Series Pumps made after September 2001.What's Included? Rotor, 8-Slot (SP-99-A) Blades (8) (SP-98) O-rin...

1-1/4" Bronze Extra Long Thru-Hull Fitting w/Nut Features: Extra long NPSM / NPT combination thread C83600 Bronze Specifications: Hose Size: 1-1/...

Non-Metallic Strainer Cap Fits ARG-1000 & ARG-1250Features: Non-Metallic Strainer Cap  Fits ARG-1000 & ARG-1250

BS-6 Stainless Steel Basket - 3.1" x 10.1"GROCO's 304 Stainless Steel filter baskets for the raw water strainers. The baskets have an improved han...

Bronze Round Hull Strainer with Access Door for Up To 1" Thru-HullFeatures: Patented access door design allows easy access to Thru Hulls. C84400 b...

3/4" NPT x 3/4" ID Stainless Steel Pipe to Hose Straight Fitting Features: Male NPT x Hose connection #316 Stainless Steel Sizes from 1/2" to 3" S...

Bronze Vented Loop - 2" Hose Features: Allows air to enter to break siphon, but does not permit air and odors to escape! Cap is threaded 1/2" NPT ...

1-1/2" NPS NPT Combo Stainless Steel Thru-Hull Fitting with NutFeatures: NPSM / NPT combination thread #316 Stainless Steel Sizes from 1/2" to 3" ...

2-1/2" Engine Flush Kit & AdaptorThe ConceptA simple quarter-turn quick-release plug can add safety and flexibility to any water system.  Add ...

1" Ball Valve/Seacock & Raw Water Strainer ComboFeatures: Square hole in handle accepts standard ratchet 1-1/4" sizes and larger include one g...

Bronze Hose Barb Thru-Hull Fitting - 3/4" Features: NPS Thread With Hose Connection C83600 Bronze UL Listed 647B Specifications: Hose Size: 3/4" ...

Bronze Strainer Cap - Fits ARG-1000 & ARG-1250This bronze strainer cap fits GROCO water strainers ARG-1000 and ARG-1250.Specifications:Materia...

Non-Metallic Strainer Cap Fits ARG-500 & ARG-750Features: Non-Metallic Strainer Cap  Fits ARG-500 & ARG-750

Pressure Storage Tank - 0.5 Gallon DrawdownA pneumatic pressure charge, matched to the pump cut on pressure prevents water logging by separating t...

1-1/2" Bronze Combo Scoop Thru-Hull w/Nut Features: Designed for increased flow compared to standard Thru Hulls NPSM / NPT combination thread C836...

BS-5 Stainless Steel Basket - 2.6" x 9.4"GROCO's 304 Stainless Steel filter baskets for the raw water strainers. The baskets have an improved hand...

1-1/2" Stainless Steel Extra Long Thru-Hull Fitting w/Nut Features: Extra long NPSM / NPT combination thread #316 Stainless Steel Specifications:...

1" NPT x 1" ID Bronze Pipe to Hose Straight FittingFeatures: Male NPT x Hose connection C83600 Bronze Sizes from 1/2" to 5" Standard Flow UL Liste...

3/4" Bronze In-Line Check ValveFeatures: C83600 cast bronze construction NPT threaded ports 1/2" - 2" sizes Suitable for use with diesel fuel or g...

3" Bronze Thru-Hull Fitting with NutHigher flow rates are possible with this 3" GROCO thru-hull fitting than conventional thru-hulls.Features: NPS...

1-1/4" Hose Barb Stainless Straight Deck Drain Features: Scuppers are installed flush with the deck and have a removable drain. #316 Stainless Ste...

1" Stainless Steel Extra Long Thru-Hull Fitting w/Nut Features: Extra long NPSM / NPT combination thread #316 Stainless Steel Specifications: Mat...

1-1/4" Hose Barb Stainless 90 Degree Deck Drain Features: 90 Degree Barb Scuppers are installed flush with the deck and have a removable drain. #3...

1-1/2" Bronze Extra Long Thru-Hull Fitting w/Nut Features: Extra long NPSM / NPT combination thread C83600 Bronze Specifications: Hose Size: 1-1/...

1-1/4" NPT x 1-1/4" ID Bronze 90 Degree Pipe to Hose Fitting Standard Flow ElbowFeatures: 90 degree Male NPT x Hose connection C83600 Bronze Sizes...

2" NPS NPT Combo Bronze Thru-Hull Fitting with NutFeatures: NPSM / NPT combination thread C83600 Bronze Sizes from 1/2" to 5" UL Listed 647B Avail...

1/2" NPT x 3/4" Bronze Full Flow Pipe to Hose Straight FittingFeatures: Full Flow Male NPT x Hose connection C83600 Bronze Sizes from 1/2" to 3" U...

Bronze Slotted Hull Scoop Strainer with Access Door for Up to 3" Thru HullFeatures: Access door design allows easy access to Thru Hulls C84400 bro...