Vibrant 3.25" Silicone Hump Hose Coupler 3.25" Id X 3" Long 2737 The Vibrant 2737 3.25" Silicone Hump Hose Coupler features a 4-Ply Silicone construction with a 3.25" I.D. and 3" overall length. The Vibrant coupler features a 1-year limited warranty...