CARLON ENT BLUEFLEX CONDUIT, 1/2 IN. X 200 FT.The Carlon 200 ft. x 1/2 in. Blue ENT Coil can be used to run coax, computer and telephone cable. This coil offers a non-metallic construction. UL and CSA listed for safety. | Product is coiled in a 200 ft. roll 1/2 in. size inner diameter is 0.56 and the outer diameter is .84 minimum bend radius is 6 in. | Color blue indicates it is used for electrical power circuit’s product is also known as smurf tube | Carlon ENT tubing can also be used to run low voltage wiring devices such as coax cable, computer cable and telephone cable | Carlon PVC cement is recommended for use with ENT tubing along with fittings and boxes