Liquidtight flexible steel conduit provides the safest possible protection for extremely wet and oily locations. Spiral wound, squarelocked flexible galvanized steel core covered with PVC. Sunlight-resistant. Sizes are printed on extruded cover with foot marks to make measuring easy. UL listed. CSA (Canadian Standards Association) approved. No. 55082621: Conduit Type: Flexible, Diameter: 1/2", Coil Length: 25', Minimum Internal Diameter: 0.500", Maximum Internal Diameter: 0.622", Minimum External Diameter: 0.820", Maximum External Diameter: 0.840", UL Listed: Yes, Pkg Qty: 1, Package Type: Box No. 55082622: Conduit Type: Flexible, Diameter: 1/2", Coil Length: 50', Minimum Internal Diameter: 0.500", Maximum Internal Diameter: 0.622", Minimum External Diameter: 0.820", Maximum External Diameter: 0.840", UL Listed: Yes, Pkg Qty: 1, Package Type: Box No. 55082721: Conduit Type: Flexible, Diameter: 3/4", Coil Length: 25', Minimum Internal Diameter: 0.750", Maximum Internal Diameter: 0.820", Minimum External Diameter: 1.030", Maximum External Diameter: 1.050", UL Listed: Yes, Pkg Qty: 1, Package Type: Box No. 55082722: Conduit Type: Flexible, Diameter: 3/4", Coil Length: 50', Minimum Internal Diameter: 0.750", Maximum Internal Diameter: 0.820", Minimum External Diameter: 1.030", Maximum External Diameter: 1.050", UL Listed: Yes, Pkg Qty: 1, Package Type: Box