Hayward heavy-duty grates are injection molded with ABS which resists chemical attack that leads to yellowing. For concrete, vinyl, or fiberglass pools, they are totally noncorrosive and nonconductive.
Hayward's Low Velocity suction outlets are specifically designed for applications with requirements limiting the maximum flow velocity to 1.5 feet per second. They also retrofit into all existing Hayward frames. VBG compliant and tested to ANSI/APSP-16 standards.
Features and Specifications:
Certified to ASME A112.19b-2009, ANSI/APSP-16 and CPSC requirements.
ASME approved flow rates.
Replacement covers retrofit to all existing Hayward frames.