This Regency pre-rinse finger hook assembly is perfect for use as a replacement on your pre-rinse faucet. The finger hook mounts onto the pre-rinse riser and provides a place to secure the spray valve when it's not being used. If the finger hook on your faucet is broken or missing, use this one to fix the issue and get it working again! It is designed to fit 3/8" NPS risers on Regency pre-rinse faucets.