TrackOne silicone couplers are made of reinforced silicone and use 4 ply design for strength. Transition couplers designed to connect two different size pipes.
Features:

• Reinforced Silicone 4 Ply
• Available in multiple diameters, length, and angles
• Diameter – 2.5″ to 4″
• Angles – Straight, Transition, 45 Degree, 90 Degree