Watts RK 919-RT 3/4 - Part of the RK-919 Series R304 Detectable Warning Surfaces high volume roof drain features

high volume roof drain features a flashing clamp with an integral gravel stop

It combines rugged materials with a slim profile to protect roof assemblies

flashing clamp

24″ long modular channel

salt and everyday weathering

Watts RK 919-RT 3/4 - Part of the RK-919 Series R304 Detectable Warning Surfaces high volume roof drain featuresThis complete valve rubber repair kit provides all the parts necessary to repair or replace all the rubber parts of a 3 4 inch reduced pressure zone assembly backflow preventer, model 919. This kit consists of 2 check seat O rings, 2 check cover O rings, relief valve O ring, relief valve cover O ring, relief valve stem O ring, check rubber, relief valve diaphragm, quad ring, and relief valve disc. Features Factory replacement kit No special tools