Hello Gary S,
Thank you for your question. The Delta Debonair Pull-Out Kitchen 16927-SSSD-DST faucet does not come with the RP70740 hub assembly and it not designed to work/fit with the faucet. However, to remove the hub assembly RP51491SS you would have to first turn the water shut off supply valves off. Then, let the pull-out hose drop down through the faucet. Next, remove the handle, cap assembly and pull the hub assembly straight up and off the valve body.
Date published: 2019-01-29