Marine Plumbing & Ventilation

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

ARG-1253 Sight Glass Fits ARG-1250Sight glass fits the ARG-1250.

2" Bronze High Speed Thru-Hull Fitting w/Nut Features: Designed for increased flow compared to standard Thru Hulls and with less drag NPSM / NPT c...

WSA-1001 Stainless Steel Basket Fits WSA-1000 & WSB-1000Features: Stainless Steel Basket Fits WSA-1000 & WSB-1000

Stainless Steel Hose Barb Thru-Hull Fitting - 5/8" Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Specifications: ...

Stainless Steel Hose Barb Thru-Hull Fitting - 1-1/8" Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Specifications...

Bronze Pipe Nipple - 1" NPT Features: Cast-in wrench flat simplifies installation and removal NPT x NPT Connection C83600 Bronze   Full flow   Not...

1/2" NPT 90° Stainless Steel Fuel ValveFeatures: Compact design 90° flow path 1/2" NPT male and female ports Use FV-590 (Brass) for fiberglass tan...

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...

Bronze 17 GPM Centrifugal/Baitwell PumpFeatures: 17 GPM flow is ideal for baitwell circulation or any onboard pumping job that needs high GPM flow...

1" NPT x 1-1/8" Bronze Full Flow Pipe to Hose Straight FittingFeatures: Full Flow Male NPT x Hose connection C83600 Bronze Sizes from 1/2" to 3" U...

Backing Block for 3/4" & 1" SeacocksFeatures: Each size fits multiple seacock sizes Press threaded brass inserts into the hull side of the ba...

ARG-755 Series 3/4" Raw Water Strainer with Non-Metallic Plastic BasketFeatures: Mounting System Allows Removal Without Tools Bonding Connection B...

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

ARG-1003 Sight Glass Fits ARG-1000Sight glass fits the ARG-1000.

PWSA-751 Poly Basket Fits WSA-500,  WSB-500 & WSB-750Features: Poly Basket Fits WSA-500,  WSB-500 & WSB-750

1-1/4" Bronze Combo Scoop Thru-Hull w/Nut Features: Designed for increased flow compared to standard Thru Hulls NPSM / NPT combination thread C836...

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...

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

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

3/4" NPS NPT Combo Bronze Thru-Hull Fitting with NutFeatures: NPSM / NPT combination thread C83600 Bronze Sizes from 1/2" to 5" UL Listed 647B Ava...

1/2" 4-Port Tank Selector ValveFeatures: For fuel or water Four Positions: Tank-1, Tank-2, Tanks 1 & 2, Off Full 1/2” flow Audible “click” at ...

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

ARG-1000 Series 1" Raw Water Strainer with Monel BasketFeatures: Mounting System Allows Removal Without Tools Bonding Connection Both Sides O-Ring...