3/8" Weighted Airline, 25' roll

This heavy-duty airline is manufactured exclusively for Keystone Hatcheries! Forget about tying bricks onto airline - this hassle-free tubing will sink right to the bottom without weights. It is kink resistant, metal free, black in color and virtually leak-proof! Use 3/8" barbs and 1/2" Stainless Steel Clamps (see Airline Accessories).