"The Radiant Made Simple Radiant Floor Tubing Kit works with Radiant Made Simple Radiant Heat systems, Item#s 456330 and 456331. U.S.A. Product Type Hardware/accessory, Dimensions W x D x H in. 29 x 30 x 8. PEX oxygen barrier tubing installs with Radiant Heat system Includes 300ft. of tubing, 2 pipe bend supports and 100 foam staples Item# 456330 supports 1, 2 or 3 radiant floor tubing kits Item# 456331 supports 4 or 5 radiant floor tubing kits"