Pentair StarGuard Main Drain Complete 500121 - Black - Two Pack SD60 Refer to the included user

Refer to the included user guide for maintenance intervals and safe storage

Key features that simplify pool care

3-1/2" Outside Diameter X 2-3/8" Inside Diameter

total chlorine or bromine

Pentair StarGuard Main Drain Complete 500121 - Black - Two Pack SD60 Refer to the included userPentair 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