Step 1. Insert the faucet stem into the hole on the countertop.
Step 2. Under the sink, put the mounting washer on the faucet stem. Slip on the wing nut and tighten it.
Step 3. Choose the right accessory package according to the size of your PE tubing. Put the black seal ring on the bottom of the fitting.
Step 4. Screw the quick-connect fitting tightly onto the faucet stem. Turn on the water purification system to flush the kitchen water filter faucet for 1 minute.