While the standard C-303 provides excellent acidification protection

Thermal Stability: Rated for high-temperature environments typical of condensing heat exchangers

As a veteran universal replacement part

Simplified Identification: Features a silver dot marking for rapid identification in the field

Can the ZG-TF112 be used with larger NF or AF series actuators

Watts 0063230 Preventer Refrigerant While the standard C-303 providesThe Watts 0063230 (Model LF007 QT) is a 1 2 inch double check valve assembly designed to prevent the backflow of contaminated water into the potable water supply. This lead free unit is the direct updated replacement for the 0062131 and legacy 007 1 2 models. Engineered for low head loss performance, it features a modular design with two independent check valves and two shutoff valves. The 007QT 1 2 utilizes a bronze body construction and Noryl check