Uncased Water Coils Aluminum fin on copper tube. Suitable for water-based heat pumps, domestic hot water (combo heating) or hydronic/boiler applications. 150 psi, 180°F maximum. Drain pans available for chilled water application UW Uncased Water coil-spec-20240801 Related products Uncased WaterUW3021-04 Read more Uncased WaterUW2220-04 Read more Uncased WaterUW2220-03 Read more