Description

4.5" x 9.75" Big Blue Polyphosphate Filter Cartridge

Made in USA

Fits all standard 4.5" x 10" Big Blue Style Filter Housings
Features ResinTech 100% Slow Melt Polyphosphate
All Materials Are FDA grade
Highest Total Capacity Phosphate Cartridge



Will Work on all Big Blue 10' Housings
Accessories