#13 Double Wall Tube w/Gold Lock

#13 Double Wall Tubing with Gold Tube Lock installed. An exclusive Microsonic design, the Tube-Lock coupling system is an excellent way to attach tubing to soft earmolds. When inserted into a soft earmold, a tiny flanged ring on the quilled tubing fastens into the material foaming a securer seal, eliminating the need for cementing. Ideal for vinyl, silicone and soft silicone earmolds. For easy installation, use the Tube-Lock Applicator Tool.