ITEM NAME:8 Pcs Poppet Valve,Universal Poppet Valve,Keg Poppet Valve,Ball Lock Poppet C7A7 8 Pcs Poppet Valve,Universal Poppet Valve,Keg Poppet Valve,Ball Lock Poppet C7A7 Well Made and Great Quality The keg post poppet is stainless steel. The O-ring is made from food grade silicone. It features an anti- corrosion/ heat resistance/ environmental that can last a lifetime Will Send The Extra O-ring We will free send 8 pieces the o-ring. The washer on poppet valve will be broken after long time using. If broken, the poppet valve will leaks.So need you replace it Seal Well The keg poppet valve has adequate spring force to seal under pressure.No air leak, no beer leaks Fit For Ball-lock Keg The universal poppet is used for gas posts/ liquid posts/ ball lock kegs/cornelius kegs/corny keg/soda keg.Use our stronger keg poppets to replace a hardened and leaking poppet How is the keg poppet valve used in the keg post? The stem is made to float inside the spring,so the spring does not bind when threading the keg post on. When the keg post is screwed on it will compress the assembly How to check whether your keg post leaks or not? You can test for gas leaks by spraying soapy water on the post. If the keg post bubbles around the poppet, so your post is broken. The most common cause of leaks in posts is typically a faulty poppet valve They are little long for some cornelius kegs, you can snip off a bit on the spring using a wire cutter and they work fine Pop out your old poppets by pushing down from the top with a screwdriver. And then install our new keg poppet colour:Silver Material:metal size:2.7cm Package Contents: 8 * Poppet Valves