Hydrotherm 59-1089 Air Filter 319825-402 75 inches of immersion length

75 inches of immersion length with a power density of 146 watts per square inch

Replacing a fouled or intermittent water heater pressure switch with this factory-spec component restores the integrity of the exhaust monitoring circuit and prevents nuisance lockout codes

ensuring compatibility with most suction-side service ports

This part is specifically engineered for Nordyne

Common indicators include the motor "cogging" (shaking back and forth) without spinning

Hydrotherm 59-1089 Air Filter 319825-402 75 inches of immersion lengthThe 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