Mark Haynes - If you need just that extra inch or two to reach your Delta 500 series lavatory handle, a replacement is available for less than $20 in chrome, it’s Delta Part number RP 5645, and it can be ordered through any hardware store that carries Delta faucet’s. It attaches with a single set screw and takes less than 10 minutes to install. The Delta 500 series is a single handle, 4” center faucet that comes in chrome or brass, with either a metal or plastic handle on it. You can check to see what faucet you have online at www.deltafaucet.com