Watts 994-OSY-FS 4 - Part of the 994 Series Z100F-8NH Got areas on your property

Got areas on your property that constantly flood when it rains

This Watts Drains 15 inch round

Upon completion of the two hour timing sequence

Z456-3NH-6B

No-hub (standard) outlet for compatibility with conventional drainage piping

Watts 994-OSY-FS 4 - Part of the 994 Series Z100F-8NH Got areas on your propertyThis 4 inch lead free reduced pressure zone assembly backflow preventer help stop the reverse flow of liquids due to backpressure or backsiphonage, where potential health hazard exists. Its compact modular design facilitates easy maintenance with a single access cover for in line repairs. This assembly consists of a short lay length stainless steel body, test cocks, corrosive resistant stainless steel bottom mounted relief valve, torsion spring check