Thomas & Betts LLPA-12A.50 PMA Flexible Conduit. PMA Flexible Conduit, Type PA Medium Wall, Series: Smart Line, NW12, 0.47 in Inside Dia, 0.62 in Outside Dia, 50 m Length, 30 mm Bend Radius, Very High Flexibility, -40 to 105 deg C, Nylon 6/Polyamide, Black. Additional Description: TB -LLPA-12A.50 (N) COND PA6 NW12 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 - 12, 50 Meters.