Newly improved anti-siphon and regular wall faucets now are available from Merrill Manufacturing Co. Users should take note of the threaded portion at the end near the sealing washer, which helps to ensure positive and perfect alignment of the spring-loaded sealing washer with the faucet seat area. These faucets also have a large packing that can easily be compressed if shaft leaking occurs. They are completely serviceable for replacing the faucet washer and packing. The anti-siphon version is ASSE approved. Merrill Manufacturing Co.