Pentair StarGuard Main Drain Complete 500121 - Black - Two Pack automatic chemical controller This product is an easy

This product is an easy to use strong algae killer

Direct replacement compatibility: easily swaps in for Pentair 263055 and CMP 25831-110-100 with minimal effort

reliable fit on standard S

AquaChek's Nitrate Nitrite test strips give pool owners an easy

Pentair Rainbow Models 300

Pentair StarGuard Main Drain Complete 500121 - Black - Two Pack automatic chemical controller This product is an easyPentair StarGuard Main Drain 500121 Pentair StarGuard drains comply with provisions of the ANSI APSP 16 2011 standard as required by the Virginia Graeme Baker Pool & Spa Safety Act. StarGuard drains have an industry leading 15. 35 square inches of open area for water flow. If you are in an area where water velocity through the grate is limited to 1. 5 feet second, the StarGuard covers allow flow rates up to 72 GPM. StarGuard Drain Features: StarGuard