90 Degree Hose Coupler. 90 Degree Hose Coupler; 4 in. ID; 3.5 in. Leg Length From Tangent; 4 in. Wall Thickness; Black;. Hose Coupler. Vibrant Performance 90� Aramid Reinforced Silicone Elbows feature tight radius bends, making them ideal for congested engine bays that are typical in late model cars.
