Hydrotherm 59-1089 Air Filter 321142-301 A fused disconnect like the

A fused disconnect like the MARS 83323 includes internal slots for fuses

Always verify the part number against your unit's technical manual to ensure the housing dimensions and load ratings match the original equipment manufacturer (OEM) specifications

the circuit will automatically re-engage to allow for continued operation

typically found in commercial mechanical rooms

Its compact footprint and screw terminal connections simplify the wiring process for field contractors

Hydrotherm 59-1089 Air Filter 321142-301 A fused disconnect like theThe Hydrotherm 59 1089 Combustion Air Filter is a critical OEM filtration component engineered to maintain the stoichiometric balance and internal cleanliness of high efficiency condensation and hydronic heating systems. Specifically designed as a direct replacement for Hydrotherm boilers, this combustion air filter intercepts airborne particulates, dust, and environmental debris before they can reach the burner assembly. By providing a consistent