VEVOR Heat Exchanger Water to Air, 16"x 16" with 3-Row 3/8" CopperPorts, 193 Aluminum Fins Heat Exchanger for Outdoor Wood Furnaces,Residential Heating and Cooling, and Forced Air Heating Thickened Interface High Efficiency and Energy Saving Dual Use Multiple Sizes Available High Compatibility Secure to Use Operating Temperature: -40°C-180°C / -40°F -356°F,Main Materials:Copper,Maximum Working Pressure: 2.5MPa,Plate Area: 16 x 16 in /40.64 x 40.64 cm,Heat Capacity: ≥80K BTU,Number of Aluminum Fins:193 Pcs,Color: Gold,Model: C16×16,Number of Copper Tubes: 3-Row3/8",Product Dimensions (L x W x H): 21.57x16.06x3.62" / 548x408x92mm,Net Weight (with Accessories): 13.65lb / 6.19kg