Use the Gauge Cap to collect the static pressure and residual pressure from a hydrant or standpipe during a fire flow test. The Gauge Cap attaches to the 2 ½″ NH nozzle port on the test hydrant.
- Quarter-turn, 1⁄4″ ball valve is easy on the hands to operate
- Bleed valve enables air to vent out as the hydrant is opened
- Can be hand tightened with a gauge facing in the correct direction then snugged tight with the Spanner Wrench