Product Features
pH Filter
This filter is designed to treat low pH levels found in acidic water, commonly seen as blue/green staining and corrosion of pipes.
Blended for performance
This filter contains 40% calcite, 40% GAC, and 20% corosex to ensure good flow rates while still providing excellent treatment of low pH levels.
Big Blue 20"
Filter measures 20-inch long and 4.5-inch in diameter.
Standard Big Blue Size
Fits in all standard 20" Big Blue filter housings.