Dranjer FR-2

For use in systems when water must drain through to sump pit, but system vacuum must be maintained.  The Dranjer FR-2 is similar to the DR2 but has a metal stopper instead of plastic.  Great for oddly sized drains since the flange can be cut to size.

No longer a brass fitting but a grey metal.

Dranjer valves keep your home energy efficient so you only exhaust sub slab gasses and not conditioned air from the home.