• Layered Type A construction per NEC® 356.2(1)
  • Nylon reinforced braid between two layers of PVC for strength and flexibility
  • Flame retardant compound
  • Sunlight resistant
  • Oil resistant
  • Mild acid resistance
  • Non-conductive raceway


  • Constant flexing and motion applications
  • Signage and outdoor lighting over 1000 volts per 600.32 (A) (1)
  • Hazardous locations per NEC® 501
  • Industrial and commercial applications
  • Physical protection from abrasion of the conductors inside
  • Indoor or outdoor locations


Liquidtight Flexible Non-Metallic Conduit Type LFNC-A is a layered raceway of circular cross section with a smooth flexibly polyvinyl chloride (PVC) inner layer with a reinforcing layer covered with a flexible polyvinyl chloride (PVC) jacket. The wall thicknesses and dimensions of the layered conduit shall comply with Table1 of harmonized UL 1660/CSA C22.2 No. 227.2.1 of UL 1660

Temperature Rating

  • 80°C/176°F Dry
  • 60°C/140°F Wet
  • 60°C/140°F Oil resistant

References & Ratings

  • UL 1660 E123464
  • NEC® 356, 390.15, 501.10(B)(2), 502.10(A)(2), 503.10(A)(2), 511.7(A)(1), 620.21, 645.5(D)(2), 680.21, 680.23, 680.25, and 680.42
  • CSA C22.2 No. 227.2.1 File LL69271


A separate Grounding conductor is required by both the National Electrical Code and Canadian Electrical Code for all trade sizes.


The outer surface of the conduit shall be clearly marked with a legible print legend in accordance with harmonized UL 1660/CSA C22.2 No. 227.2.1.

Performance Tests

The completed LIQUID-TUFF™ Liquidtight Flexible Non-Metallic Conduit Type A shall meet all of the performance requirements contained in UL 1660 outlined below.

UL Performance Tests

  • Physical Properties
  • Original Tensile and Elongation
  • Air Oven Aging Test
  • Oil Immersion Test
  • Deformation
  • Tension
  • Flexibility (Room and Low Temperature)
  • Vertical Flame
  • Room Temperature Impact
  • Secureness of Fittings
  • Mechanical Water Absorption
  • Moisture Penetration Test
  • Durability of Ink
  • Sunlight Resistance
  • Crush Test
Product CodeTrade Size (inches)Trade Size (mm)Coil Length (feet)Reel Length (feet)Approx. Weight/1000 Feet (lbs.)Wall ThinknessInternal Diameter (min/max) inchesExternal Diameter (min/max) inchesBend Radius inches
6505-24-001 1/43550'-400.0401.360/1.4051.790/1.8358
6506-24-001 1/24150'-830.0401.575/1.6302.035/2.0909
NOTE: All dimensions and weights are subject to normal manufacturing tolerances.