WH-301 | WH-401 | WH-501 | WH-601 Siphonic Overflow Drain

For use in engineered siphonic roof drainage systems. Coated cast iron body, membrane clamp device, air baffle / inducer, 304 stainless steel hardware and no-hub boƩom outlet. Compliant with ASME A112.6.9 & ASPE 45.

Model includes

WH301 | WH-301 | WH401 | WH-401 | WH501 | WH-501 | WH601 | WH-601