This specific 904874 model is primarily designed for 90% efficient units and "C" cabinet sizes

This kit is designed for Weil-McLain Ultra Gas Boilers

making it fully approved for high-pressure R-410A applications

this freeze protection thermostat ensures comprehensive coverage across large coil faces

Daikin-McQuay 4000835 Filter 326058-757 This specific 904874 model isThe Daikin McQuay 4000835 Filter is a factory original OEM replacement air filter engineered for high efficiency particulate capture in Daikin mini split and McQuay HVAC systems. Designed as a rugged washable filter, this 12. 5" x 14. 5" screen serves as the primary barrier against airborne dust and contaminants that compromise heat exchanger efficiency. Maintaining clean coils is critical for preventing high head pressure issues and evaporator freeze