Thomas & Betts LLPA-23A.50 PMA Smart Line Flexible Conduit. PMA Smart Line Flexible Conduit, Fine Profile Medium Wall, Series: PA Series, NW23, 0.89 in Inside Dia, 1.12 in Outside Dia, 50 m Length, 45 mm Bend Radius, Very High Flexibility, -40 to 105 deg C, Nylon 6/Polyamide, Black. Additional Description: TB -LLPA-23A.50 COND PA6 NW23 FINE MDUTY BLK 50M 1 REEL=50 METERS. Catalog Description: Fine Profile Medium-Wall Very Flexible Black Conduit, (LLPA) Material - Polyamide 6, Conduit Size NW - 23, 50 Meters.