TELEDYNE LAARS A0000400 Pressure Relief Valve, 125#, 1", Rheos and Rheos+
Used on the following models:
RHCH2000, RHCH 2000, RHCH2400, RHCH 2400, RHCV2000, RHCV 2000, RHCV2400,
RHCV 2400, RHHH2000, RHHH 2000, RHHH2400, RHHH 2400, RHHV2000, RHHV 2000,
RHHV2400, RHHV 2400.