Vibrant 2837 Silicone Straight Transition Connector, Black, 4" x 4-1/2"

Vibrant 2837 Tubing Coupler - Straight - Reducer - 4 in to 4-1/2 in ID - 3 in

Vibrant Silicone Reducer/Coupler. 4'-4 1/2" Black #2837

Vibrant 2837 4 Ply Reducer Coupling 4" x 4.5" x 3" Long Black

Vibrant Performance 2837 COUPLER

Vibrant Performance 2837 Reducer Coupler, 4.50" I.D. x 4.00" I.D. x 3.00" Lon

Vibrant Performance Reinforced Silicone Hose Coupler 2837

Vibrant Performance 2837 4 Ply Reducer Coupling