Lennox 84W88 Heat Pump Defrost Control Board Genuine Original Equipment Manufacturer (OEM) Part This part is compatible with models including; HP29-048-1P This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including; 34M63,30W87,68J29,68J84,68J8401 Genuine Original Equipment Manufacturer (OEM) part. Compatible Brands: Lennox 123127