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Threaded design for easy installation: Standard threads let you screw it in quickly with common tools
and a trusted USA-made option
Built-in sampling cup eliminates test strips and reagents
Tighter manufacturing tolerances for a consistently reliable fit across compatible housings
Direct-fit compatibility for Hayward Max-Flo 1HP pumps (SPX2707CM)
HF4975-01 Advanced Spa Filter Cartridge For Pleatco PRB75 Unicel C-4975 surface debris net Threaded design for easy installation:HF4975 01 Advanced Spa Filter Cartridge Intro The HF4975 01 Advanced Spa Filter Cartridge is a direct replacement for Pleatco PRB75 and Unicel C 4975, delivering cleaner spa water with tighter filtration via advanced point bond media. Made in the USA with exclusive turquoise end caps, this cartridge is designed for reliable performance and easy identification in your filtration system. List of Features Compatibility: Replaces Pleatco PRB75, Unicel C
