Hayward SwimClear C150S Filter Cartridge - 150 Square Feet height_14 Inches This ring buoy is perfect

This ring buoy is perfect for swimming pools

This is a PVC Schedule 80 Coupling with FIPT x FIPT fitting connections that measure 2 1/2 Inch

giving you 150 tests per 50 disks

and maintenance free

Hayward SwimClear C150S Filter Cartridge - 150 Square Feet height_14 Inches This ring buoy is perfectThe Hayward CX150RE filter cartridge has a media area of 150 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 durability