Marine Raw-Water Sea Strainer Basket is selected when an assembly or process calls for protecting marine engine raw-water pumps, generators and air-conditioning from weed, shells and debris with a removable sea strainer basket. This application guide to the ABYC H-27 / ISO 9093 type covers concrete end-uses, the specification checklist, correct installation, and where an alternative mesh or filter medium performs better.
Typical Applications for Marine Raw-Water Sea Strainer Basket
Where Marine Raw-Water Sea Strainer Basket is specified and bought:
- Recreational boats: engine raw-water strainers below the waterline.
- Commercial vessels: generator and main-engine cooling water.
- Yachts: seawater air-conditioning and watermaker intakes.
- Marine OEMs: baskets for strainer bodies.
How to Specify Marine Raw-Water Sea Strainer Basket for Your Application
- Body size: Basket must fit the strainer model and inlet size.
- Holes: 2–3 mm perforation stops weed and shells.
- Material: Monel 400 or SS316; SS304 pits in seawater.
- Standard: Quote ABYC H-27 / ISO 9093 and the size designation from the table on the product page, plus any value you changed in the technical drawing.
Handling & Installation Practice
- Check the basket before every trip and after running through weed.
- Re-seat the lid seal carefully; an air leak loses the pump prime.
Common Selection Mistakes with Marine Raw-Water Sea Strainer Basket
- Running with a blocked basket, which overheats the engine and destroys the impeller.
- Fitting a 304 basket that corrodes within a season.
Where Marine Raw-Water Sea Strainer Basket Is Not the Right Choice
Not a freshwater or potable-water filter.





