The Silver 13.4 SEER2 packaged heat pump system is a single-phase unit that delivers exceptional heating, cooling, and quiet operation at 13.40 SEER2/7.00 HSPF2 in 2, 2.5, 3, 3.5, 4 and 5 ton units. The durable components are assembled into one cabinet—including an all-aluminum Spine Fin™ condenser, composite Vortica™ blower motor, and demand defrost—to deliver the sustained performance you expect year after year.