HDPE conduit products are manufactured in a wide range of colors, lengths, diameters and wall types. These apply not only to the protective conduit but also to innerduct, if present.

HDPE Conduit types include:

• Outside Plant: smoothwall, ribbed, tracer wire, aerial, Cable-in-Conduit (CIC), innerduct
• Inside Plant: corrugated (riser / plenum), innerduct

Various colors or stripes can be used to identify the network operator or the type of cable used in the conduit such as telecommunications (e.g. orange) and power (e.g. red or black with red stripe).

Conduit Sizes

HDPE conduit standards such as ASTM F2160 specify the dimensions for HDPE conduit. Various sizing systems exist, including IPS types SDR9, SDR11, SDR 13.5, DR 15.5, SCH 40 and SCH 80, "True Sized" and SIDR. For IPS types, wall thickness is described by the Dimension Ratio (DR) which typically ranges from DR 9 to 17 for conduit up to 12" in diameter. The lower the DR number, the thicker the wall, relative to other wall types.