18"x18" Frame with Four 9" Anti-Entrapment Wave Grates with Vented Riser Rings White
Features
- Single
- Floor/wall: 628 GPM at 1.1 fps
- Sump depth: 6'' minimum
- 176.8 square inch opening
- Trademarked VGB compliance button easily identifies VGB 2008 compliant cover from on deck and underwater
- #316 stainless steel screws
- Manufactured from superior UV-resistant engineered polymers
- Easily and safely retrofits to 18" square 3/4" deep frames
- All components (covers, frame, screws) meet or exceed ANSI/APSP 16-2011 and
- NSF/ANSI 50-2009a national standards and ASTM G154 UV testing exposure
- Replace every five years from the date of installation