Hayward SwimClear C4020/25/30 Filter Cartridge - 106 Square Feet - 4 Pack BTUs_150k-199k This is an Astral Lock

This is an Astral Lock Down Circular Skimmer Lid for specific Astral skimmers

And the 344 degree rotation ensures a safe transfer area

Smith was designed for maximum safety and fun

and System 2 Modular D

Hayward SwimClear C4020/25/30 Filter Cartridge - 106 Square Feet - 4 Pack BTUs_150k-199k This is an Astral LockThe Hayward CX880XRE filter cartridge (pack of 4) has a media area of 106 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