Sea water strainer gasket kit fits the 6.3" diameter clear polycarbonate cover on the top of the sea water engine intake water strainer pictured below under "More images". The set is produced from a single mold. You then divide it into its individual components including the gasket used at the rim of the lid as well as the gasket which seals the interior basket to the bottom of the strainer at the inlet. Two o-rings are included also, but only one is required between the lid and the basket.
Used on the Catalina 309, Catalina 320, Catalina 34, Catalina 350, Catalina 36, Catalina 387, Catalina 400, Catalina 42, Catalina 440, Catalina 470.
If you need the complete strainer, see "May we also suggest" below.
Not all of the above listed boats used this strainer throughout their production. Earlier boats often used our Z1869 strainer pictured below. Although there is no accurate record, Catalina Yachts reports they began using the larger strainer sometime in the mid '90's.