50mm Ball Bearing Blow Off Valve Kit with V-BandOur new Blow Off Valve is made of billet anodized aluminum and offers flawless appearance, quality, and durability. The use of the bearing minimizes friction, optimizes the alignment of the piston, and blends in with the smaller subpressure chamber achieving faster and better operation. The Viton o rings promise a perfect sealing. The absence of the membrane eliminates the possibility of valve worn, preventing any malfunctions caused by in the blow