The HANTEMP Controls “A4” series pressure regulators are engineered and constructed to deliver precise modulation for industrial and commercial refrigeration applications utilizing subcritical CO2 as well as approved halocarbons. Direct in-line ODS connections from 7/8” through 1-5/8” can be specified for integration into systems with copper piping. Models are also available for welding or threaded piping. The rugged low maintenance Stainless Steel construction is well suited for installation in process areas and can withstand harsh conditions at safe working pressures up to 800 psig.