Cover Plastic washer 3 Aerator Shell 1 2 4 Threadshank Plastic washer 5 Metal washer Lock nut 6 17 7 18 8 9 10 12 13 14 15 16 20 19 HIGH
.Assemble the thread shank, plastic washer and metal washer to faucet. Adjust the position of the faucet, and secure it with the lock nut as photo.