AHRI-certified geothermal systems from Modine are available with stand-alone A-coils for use with split ground-source heat pump systems that can be matched with furnaces by other manufacturers for dual-fuel installations. The coils are available in cased and uncased configurations for easy application. Features include stainless steel drain pans, condensate overflow switch, TXV, and 18-gauge aluminized, powder-coated steel cabinet (cased only). The air-handling units include 4-inch-thick filters and supply duct flanges. The 048 Model motor has been increased to 1 hp. Horizontal models can be installed with either right- or left-side return. 800/828-4328; www.modinehvac.com.