Groco Intake Strainer with Filter Basket ARG-755-S, 3/4 Inch NPT, 304 Stainless Steel Basket

The Groco ARG-755-S is a 3/4 inch NPT thru-hull intake strainer designed to protect raw water intake systems from debris, sand, and marine growth before water reaches a pump or engine. At the heart of the strainer is a 304 stainless steel filter basket perforated with 2 mm holes, sized to catch sand, shell fragments, and other small debris while maintaining strong water flow to the pump. The basket sits inside a housing sealed with O-rings on every mating surface, keeping the assembly watertight without relying on gaskets or tie rods that can fail or corrode over time.

A screw-on cap tops the unit for fast, tool-free maintenance, letting boat owners pull and clean the basket without disassembling the whole strainer. The cap is made from a non-metallic material so it will not corrode or bind shut after repeated saltwater exposure, a common failure point on older metal-capped strainers. Mounting hardware is included, so the strainer is ready to install directly into a thru-hull fitting. This design suits raw water intake lines on boats operating in saltwater or other environments where sand, shells, or debris are a concern, and its screw-on, corrosion-resistant cap makes it a practical upgrade for anyone tired of fighting a stuck strainer lid during routine servicing.

Specifications

• Brand: Groco
• Manufacturer Part Number: ARG-755-S
• Thread Size: 3/4 inch NPT
• Basket Material: 304 stainless steel
• Basket Hole Size: 2 mm
• Cap Material: Non-metallic
• Sealing: O-rings on all mating surfaces
• Mounting Hardware: Included
• Color: Blue
• Item Package Dimensions: 9.6 x 4.9 x 4.8 inches
• Weight: 4.3 pounds
• UPC: 742985137592

Frequently Asked Questions

What size thread does the Groco ARG-755-S use? The Groco ARG-755-S intake strainer uses a 3/4 inch NPT thread connection.

What is the filter basket made of? The basket in the ARG-755-S is made of 304 stainless steel, chosen for its resistance to corrosion in saltwater service.

How fine is the filtering on this strainer? The ARG-755-S basket has 2 mm holes, small enough to stop sand, shell fragments, and other debris from reaching the pump while still allowing good water flow.

Is the strainer cap metal or plastic? The screw-on cap on the ARG-755-S is non-metallic, which prevents the corrosion and binding that can happen with metal caps after repeated saltwater exposure.

Does the ARG-755-S come with mounting hardware? Yes, mounting hardware is included with the Groco ARG-755-S so it can be installed without sourcing separate fasteners.

How do you clean or service the basket? The ARG-755-S uses a screw-on cap design, so the basket can be removed for cleaning or inspection without tools or full disassembly of the strainer body.

What keeps the strainer watertight? O-rings are fitted on all mating surfaces of the ARG-755-S, sealing the assembly without relying on gaskets or tie rods.

What color is the ARG-755-S? The Groco ARG-755-S is blue.

How much does the ARG-755-S weigh? The Groco ARG-755-S weighs 4.3 pounds.

What are the package dimensions of the ARG-755-S? The Groco ARG-755-S ships in a package measuring 9.6 x 4.9 x 4.8 inches.

Is this strainer suited for saltwater use? The 304 stainless steel basket and non-metallic cap on the ARG-755-S are built to hold up under saltwater intake conditions.