Green Roof Planter Drain & Overflow Standpipe

Engineered for planting areas of Intensive Green Roof Systems, this 15-1/4″ (387.35 mm) diameter, cast iron drain protects roofs and maintains optimal growing conditions for plants. It is protected against clogging by a 10″ (254 mm) perforated, stainless steel gravel stop. An 8-1/2″ (215.9 mm) metering-capable PVC standpipe ensures that water level is maintained. This drain is fitted with a combination gravel stop and flashing clamp for leak free installation in roof decking. The P.V.C. Standpipe features a orifice