Amazon.com: Draft Beer Adjustable Faucet - PERA Brand Include Beer Faucet, Flow Controller, Chrome Plating Shank G5/8 Tap for Home Brew: Home & Kitchen
Beer Faucet Flow Control Stainless Steel Adjustable Tap Shank Valve Adapter | eBay
Flow Control Shank Adapter
NukaTap Flow Control Shank Adaptor - KL01151 by KegLand – HowdyBrewer