The R332 Series Integral Two-Stage regulator combines a First-Stage regulator and a Second-Stage regulator into one compact unit. Recommended for installations where piping distance is short, the R332 Series provides all the advantages of Two-Stage regulation. The compact size makes it ideal for small domestic appliances and ASME tanks used on recreational vehicles.

Constant performance is ensured by the use of a fabric-reinforced molded diaphragm. The R332 Series meets the NFPA 58 code requirements.

The R432 Series Integral Two-Stage regulator combines a First-Stage regulator and a Second-Stage regulator into one compact unit, and is designed to serve large domestic and commercial installations. Like all Fisher Integral Two-Stage regulators, the R432 Series is color-coded gray for easy identification.

Standard vent orientation is over the outlet and vents are screened. The R432 Series is recommended for installations where piping distance is short.

The R532 Series integral two-stage regulators are recommended for mobile homes and average residential service where separation of the First- and Second-Stage regulators is not cost effective. These units offer a POL connection for easy Single-Stage regulator replacement.

An integral two-stage regulator like the R532 Series reduces the possibility of water freezing in the propane gas flow in two ways: 1) by using a larger orifice, and 2) by the increased heat that can be transferred through the walls of two regulators.