Shurflo 253-221-01 Raw Water Strainer, 3/4 Inch with Bracket and Fittings, 50 Mesh Screen

The Shurflo 253-221-01 is a 3/4 inch raw water strainer built to protect your engine's raw water cooling system from debris, sand, weeds, and other contaminants before they reach the pump. The strainer housing and mesh basket are molded from durable plastic, and the unit includes a mounting bracket along with the fittings needed for installation on 3/4 inch water lines. Inside, a 50 mesh screen catches fine particulate while still allowing sufficient water flow for reliable engine cooling, making it a practical addition to any raw water intake plumbing run on a boat.

This strainer is designed to be installed inline between the thru-hull or seacock and the raw water pump, where it is easy to inspect and clean. The included bracket allows for secure mounting in the engine compartment, keeping the strainer stable and accessible for routine maintenance. Because clogged intakes are a leading cause of overheating and pump damage, a properly sized strainer like this one is a key part of routine raw water system upkeep.

Specifications

• Brand: Shurflo
• Manufacturer Part Number: 253-221-01
• Category: Thru Hull Fittings & Strainers
• Connection Size: 3/4 inch
• Mesh Screen: 50 mesh
• Material: Plastic
• Color: No color (natural/unpainted)
• Style: Mesh strainer
• Included Components: Strainer body, mounting bracket, fittings
• Weight: 1 pound

Frequently Asked Questions

What size water line does the Shurflo 253-221-01 strainer fit? The Shurflo 253-221-01 is sized for 3/4 inch water lines and comes with the bracket and fittings needed for that connection size.

What mesh size is the strainer screen? It uses a 50 mesh screen, which is fine enough to catch sand, weeds, and other small debris before they reach the raw water pump.

What is the strainer body made of? The 253-221-01 strainer housing and basket are made of plastic.

Does the 253-221-01 come with a mounting bracket? Yes, the Shurflo 253-221-01 includes a mounting bracket along with the fittings required for installation.

How much does the Shurflo 253-221-01 weigh? The Shurflo 253-221-01 raw water strainer weighs 1 pound.

Where should this strainer be installed? The 253-221-01 is designed to be installed inline in the raw water intake plumbing, typically between the thru-hull or seacock and the raw water pump, so debris is filtered out before reaching the pump.

What color is the Shurflo 253-221-01 strainer? The strainer is supplied with no added color, in its natural plastic finish.

Is this strainer genuine Shurflo? Yes, part number 253-221-01 is a genuine Shurflo raw water strainer, not a generic substitute.

What comes in the box with the 253-221-01? The package includes the strainer body with 50 mesh screen, a mounting bracket, and the fittings needed for a 3/4 inch installation.

How do I maintain a raw water strainer like the 253-221-01? Because it mounts with an accessible bracket, the 253-221-01 can be periodically opened and the 50 mesh screen cleared of accumulated debris to maintain proper raw water flow to the engine.