Air Shifter Bottle Strap.
Features & Benefits:-* Rubber coated, zinc-plated steel strap Air Shifter Bottle Strap. * Straps Bottles 3-3/16in. diameter like our 721, 721P, 821 and 821P DOT 1 LB. air Bottles and 1 LB NOS Bottles. * Sold Each. Tech Tips:-* Two Required.