Big White Big Blue 100% Phosphate Replacement Water Filter Cartridge 10" inch x 4.5" Inch.
It reduces calcium and lime scale from your water supply.
For use with all Whole supply Point of entry systems, Softening applications, commercial and industrial, window cleaning equipment and filtration systems and some domestic/residential drinking water filtration/purification devices.
This is a 10" x 4.5" Scale Reduction water filter cartridge. This cartridge will suit all 10" x 4.5" big blue or big white housings.