Intertap Forward Sealing Stainless Steel Beer Faucet. In normal rear-sealing faucets, the entire faucet has to drain of beer. Forward sealing faucets keep beer in so the inside doesn't have a chance to get sticky, making cleaning much easier. A forward sealing faucet also reduces the chance of off flavors transferring to your beer while you pour. Other forward sealing faucets use a floating O-ring, which is just as sanitary but requires the o-ring to move inside the faucet body in order to seal correctly. This can become a problem as the faucet ages. Intertap faucets use a sliding shuttle that guides the o-ring into the perfect position every time. The threaded spout easily unscrews from the faucet and can be replaced by a growler filler or stout spout quickly and easily. Pour a pint and then fill a growler in no time at all.