1.Specification:16, 20, 25, 32, 40, 50, 63, 75, 90, 110, 160 2.Color:yellow,white and orange 3.Usage: hot water and cold water Features: 1) Flexibility for easier and faster installation 2) Installed under the floor in continuous loops without leaky joints 3) Work with any kind of floor covering, ideal for installation in concrete slabs,lower levels, basements and garages 4) Removes the chill from cold kitchen and bathroom floors and unfinished basements 5) Can reduce heating bill up to 40%than forced air heating systems 6) Never stir up dust and pollutants 7) Virtually noise free 8) Without need for annual furnace and duct cleaning