Trane RunTru A4AH4 Series 4 Ton 15 SEER 48000 BTU Single Stage Multi-Position 1/2 HP Air Handler A4AH4E48A1C30A is a powerful air handler from Trane capable of delivering the best heating experience for a homeowner. More Info: https://greenleafair.com/product/trane-runtru-4-ton-15-seer-48000-btu-single-stage-multi-position-1-2-hp-air-handler-a4ah4e48a1c30a/