Waterway  Flow Drain Cover 10-Inch Dark Gray | 640-1909-DKGV

This is a BLOCKABLE VGBA Suction Outlet It must ONLY be installed in a suction system that also includes one

or more of the following devices or systems designed to prevent suction entrapment, when and if the
suction cover marked for single use and used as the sole source of water for a single suction outlet:

-Safety Vacuum Release System
- Suction Limiting Vent System
- Gravity drainage System
- Automatic Pump Shut-Off System
- Drain Disablement
- Other Systems determined by Consumer Product Safety Commission to be equally effective
as, or better than above-mentioned systems at preventing or eliminating the risk of injury
or death associated with the pool drainage system.