SHURFLO Mains Press Regulator, water inlet, Black, USA f-NPT-/, has a built in regulator helps protect water system from high pressure damage.
Features
The Filter screen prevents dirt and foreign substance buildup Built in check/non-return value, prevents water loss when pump is on The water enters the inlet via a /'' NPT USA female thread. (A screw on protection cover is also included). The fitting requires a hole in the wall of about mm diameter, and extends back around mm with a male / BSP thread for connecting RV pipework