System Support, Connection Type/Size 1/4 in to 5/16 in Corrugated Tubing, Compatible Nominal Size 1/4 in, 5/16 in, Corrugated Tubing Fitting Material Polyamide 6, Fitting Length 0.79 in, Nominal Size 1/4 in, Tubing Size 0.276 in, 0.393 in, Yes, For Use With Connecting Pieces, Rail Clips, Tops, Tubing Profiles F, G, and M