The Groco ARG-755-S is a cast bronze ARG Series raw water strainer designed as the ideal filtration solution for cooling water intakes on marine engines, air conditioning units, and generators. Featuring a #304 stainless steel filter basket and a clear one-piece molded sight glass, this strainer delivers reliable performance and easy serviceability in demanding marine environments.
The ARG-755-S features a C84400 bronze head casting with 3/4" female NPT inlet and discharge ports, making it a direct-fit solution for standard marine plumbing. The filter basket offers an open area ratio of 24, with 0.077" diameter holes at 96 holes/in² and 45% open area for efficient water flow with minimal restriction.
Key Features:
- Cast bronze construction with C84400 bronze head casting
- #304 stainless steel filter basket (BS-1) for corrosion resistance
- 3/4" female NPT inlet and outlet ports
- One-piece molded sight glass eliminates tie rods and gaskets
- Non-metallic screw-on cap magnifies internal view of filter basket for easy inspection
- O-ring seal on all joining surfaces — no gaskets required
- Tool-free mounting system with reusable strap for quick removal
- Bonding connection on both sides
- Improved drain plug design for easy servicing
- Improved basket and handle design
- Overall height: 6.4 in. | Diameter: 5.3 in.
- UL Listed 255-D
- Made in the USA
The ARG-755-S should be installed on the suction side of engines and pumps, ideally oriented vertically above the outside waterline to reduce the risk of water leaks and simplify routine maintenance. Mounting hardware is included. Compatible replacement baskets include the standard #304 SS basket, Monel basket (recommended for saltwater applications), and a non-metallic basket for high-usage systems such as air conditioning or refrigeration.
Included Components: Strainer body, #304 SS filter basket (BS-1), one-piece sight glass (ARG-503), screw-on cap (ARG-501-PC), improved drain plug (ARG-756), and mounting hardware.