FeaturesSmooth, rounded integral bushing in each hub to protect conductor insulationAccurately tapped, tapered NPT threads for tight, rigid joints and ground continuityHeavy duty design resists mechanical abuseElectrical conductivity equal to rigid conduit on a similar length basis - no bonding jumper requiredInterior insulating liner protects conductors from abrasion under vibrating conditionsFemale end fitting with union at one end and a female end fitting with a removable male nipple at the other end