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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...

BS-8 Stainless Steel Basket - 3.1" x 12.4"GROCO's 304 Stainless Steel filter baskets for the raw water strainers. The baskets have an improved han...

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

Drain Plug with O-Ring for ARG Strainers 2008 & OlderDrain Plug before 080101 for ARG Strainers 2008 & Older

ARG-3 Strainer Service KitARG Series raw water strainer service kit. Compatible with the Groco ARG 1500, 2015, 2520, 2500, 3015, 3020, 3025 and 30...

Drain Plug for ARG Strainer 2009 & Newer - No O-RingDrain plug W/O O-ring for ARG Strainer. For Strainers older than 2008 use ARG-506.

ARG-2503 Sight Glass for ARG-2500 SeriesFeatures: Sight Glass Clear Specifically for ARG-2500 Series

Bronze Clam Shell Style Hull Strainer f/Up To 1" Thru Hull Features: C84400 bronze body and door. Cast filter slots. Pressure relief holes in door...

1" Bronze Combo Scoop Thru-Hull w/Nut Features: Designed for increased flow compared to standard Thru Hulls NPSM / NPT combination thread C83600 B...

BS-11 Stainless Steel Basket - 3.1" x 15.4"GROCO's 304 Stainless Steel filter baskets for the raw water strainers. The baskets have an improved ha...

BP-5 Poly Basket - 2.6" x 9.4"Replacement Poly Baskets are made of corrosion-resistant polyethylene and have an improved handle design for easier ...

3/4" Bronze Extra Long High Speed Thru-Hull Fitting w/Nut Features: Designed for increased flow compared to standard Thru Hulls and with less drag...

1-1/2" NPT #316 Stainless Steel In-Line Ball ValveFeatures: 1-1/4" sizes and larger include a grease zerk fitting for lubrication (use only with t...

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

Perforated Hull Strainer with Access Door 2" Max Thru-HullFeatures: Access door design allows easy access to Thru Hulls C84400 bronze body and doo...

Bronze Pipe Nipple - 2" NPT Features: Cast-in wrench flat simplifies installation and removal NPT x NPT Connection C83600 Bronze   Full flow   Not...

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...

3/4" NPT #316 Stainless Steel In-Line Ball ValveFeatures: 1-1/4" sizes and larger include a grease zerk fitting for lubrication (use only with the...

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...

BP-3 Poly Basket - 2.6" x 7.3"Replacement Poly Baskets are made of corrosion-resistant polyethylene and have an improved handle design for easier ...

1" NPT Bronze In-Line Ball ValveFeatures: Female NPT Threads 1-1/4" sizes and larger include a grease zerk fitting for lubrication (use only with ...

1" Bronze Flanged Full Flow SeacockFeatures: 1-1/4" sizes and larger include one grease zerk fitting for lubrication (use only with the valve in t...

3/4" NPS NPT Combo Stainless Steel Thru-Hull Fitting with NutFeatures: NPSM / NPT combination thread #316 Stainless Steel Sizes from 1/2" to 3" UL...