Aprilaire 4028 Drain Trap Assembly 321894-709 designated as model ADRS-2

designated as model ADRS-2

Common Questions: What are the symptoms of a failing 100112658 pressure switch

effectively resolving common pilot burner failure codes and erratic startup cycles

Using this in a Natural Gas unit will result in improper combustion due to the orifice sizing

Durable Construction: Built to withstand the high-temperature demands of boiler gas valve applications

Aprilaire 4028 Drain Trap Assembly 321894-709 designated as model ADRS-2The Aprilaire 4028 Drain Trap Assembly is a critical replacement component designed specifically for the Aprilaire Model 800, 865, and 866 series steam humidifiers. This professional grade humidifier drain trap kit ensures the efficient removal of condensate, preventing water backup and protecting your HVAC system from potential moisture damage. Engineered for steam humidifier maintenance, the assembly includes a high durability Aprilaire 4028 trap, a