Inner Duct: Black high density polyethylene (HDPE) meeting ASTM 3350 requirements with TC-7 wall thickness.

Armor: Galvanized steel tape 25 mils thick, interlocked and helically applied.

Jacket: 60 mil thick HDPE meeting ASTM 3350, nominally orange or black but can be colored to your specifications.

Applications:
• GILA-Duct® is a specially manufactured HPDE duct that is used where additional mechanical protection of cable is of primary importance. Suitable for both aerial and buried installations, this construction combines the protection of a metal armor with the low cable pulling friction and the low dielectric constant of HDPE. GILA-Duct can be supplied empty, with a pull line, or with Draka cables presinstalled. It is shipped with sealed ends to prevent entry of moisture and other contaminants.
• Conductors available include THHN/THWN, EPR-USE, XHHW-2, RHH/RHW-2, XLP-USE, L-824 B or C airport lighting cable, fiber optic cable, paired communication/coax cables, aluminum conductors and medium voltage cables. 
• Tests have shown that the average lightning resistivity of GILA-Duct is up to 200kV. 

Specifications and Ratings: 
• ASTM D3485 – Standard specification for smooth wall coilable polyethylene (PE) conduit (duct) for preassembled wire and cable
• HDPE meets the requirements (Class C, Grade PE33) of ASTM D3350
• Standard specification for polyethylene plastics pipe and fittings material

Rating: The duct is composed of black (other colors available), high-density polyethylene meeting the requirements (Class C, Grade PE33) of ASTM 3350 — Standard Specification for Polyethylene Plastics Pipe and Fittings Material.