Hayward Micro Star-Clear C250 Filter Cartridge - 25 Square Feet filter-length_25 1/4 inches It is used for Calcium

It is used for Calcium Hardness testing in Taylor Kits

This is a generic brand and the manufacturer could vary

This Micro RGB Color LED Accent Light Assembly by S

The Gemini commercial pool cleaner with PVA brushes is designed for Olympic size pools

Hayward Micro Star-Clear C250 Filter Cartridge - 25 Square Feet filter-length_25 1/4 inches It is used for CalciumThe Hayward CX250RE filter cartridge has a media area of 25 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