Watts LFRK 919VC 3/4-1 - Part of the RK-LF919 Series ZC100F-4NH The HDPE material is waterproof

The HDPE material is waterproof and can act as a water barrier to prevent damage to drywall and wood from frequent water exposure

The 6 mil thickness provides added durability

The unit features a 12″ (305 mm) wide channel

Each mat is placed in-ground with wet set concrete

Specifications Body Material Epoxy Coated Cast Iron Brand Watts Buy American Act Compliant NO FreeArea 137 SQ IN Lead Free Not In Scope Outlet Connection Size 4 IN Outlet Connection Type No Hub OverflowDome No OverflowDrain External Dam Specification Sheet - RD-100 Large Area Roof Drain

Watts LFRK 919VC 3/4-1 - Part of the RK-LF919 Series ZC100F-4NH The HDPE material is waterproofThis repair kit is a factory replacement for the 3 4 and 1 inch Watts backflow preventer relief valve cover. Features Factory replacement kit No special tools required for changing parts Parts made of high quality material Original parts insure long service life Specifications Compatible Series or Model LF919 Compatible Size Used On 3 4 IN to 1 IN Kit Contents Relief Valve Cover, Cover O ring Kit Type Relief Valve Cover Kit Lead Free YES Product Group