Lock Nut Connection Type/Size 1 1/4 in NPT Compatible Nominal Size 1/4 in Corrugated Tubing Fitting Material Polyamide 6 Fitting Length 1.97 in Nominal Size 1/4 in Tubing Size 1.25 in Chemical Resistant Yes For Use With Corrugated Conduit and Tubing Description/Special Features Electrical Installations Corrugated Tubing Fitting Color Black Standards CSA Certified UL Listed Fitting Height 0.3 in Fitting Thread Length 0.3 in Fitting Width 1.97 in