Hayward SwimClear C4500/C4520 Filter Cartridge - 112 Square Feet - 4 Pack pool-shape_Grecian This is a Hayward CAT

This is a Hayward CAT adapter that works with their probes and sensors so they can be used on either the Stranco Controllers or Chemtrol Controllers

1-1/2 inch MIP and 18 inch tube

No glue mess

and Aboveground PLD Series Filters

Temp Tracer PockeTester measures the Sodium Chloride level in salt water pools with a range from 0 to 9

Hayward SwimClear C4500/C4520 Filter Cartridge - 112 Square Feet - 4 Pack pool-shape_Grecian This is a Hayward CATThe Hayward CX875XRE filter cartridge (pack of 4) has a media area of 112 square feet and is made of superior reinforced polyester pleated material with molded end caps. The precision engineered extruded core design provides maximum water flow while reducing energy cost. And the reusable filter cartridge provides a high degree of water clarity and longer filter cycles. Hayward filter elements are designed to meet NSF's high quality performance and