meaning it is specifically tested and certified for low-pressure steam heating boilers (operating up to 15 PSI)

including a 10

the 066205 is the direct technical successor to the 066163

It is technically identical to and replaces Lennox 29K1401

Schneider Electric (Erie) VT3313G13A020 Valve Assembly Els PW 17895 meaning it is specifically testedThe Schneider Electric (Erie) VT3313G13A020 Valve Assembly is a contractor grade 3 way zone valve designed for demanding hydronic heating and cooling applications. Engineered with the signature PopTop removable actuator, this assembly allows for rapid head replacement without breaking the 3 4" sweat piping connections, significantly reducing field labor. This model features a 4. 0 Cv flow coefficient, optimized for high capacity flow with minimal