Ball Lock Post Manifold!
TSTabc 2 Way Gas Distribution Co2 Distributor Manifold With Ball Lock Disconnect post,co2 Splitter for Homebrew Beer Making Brewing Too
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Also Consider: Stainless Steel Jumpers from Valuebrew those allow you to clean multiple ball lock keg lines at the same time.
TSTabc 2 Way Gas Distribution Co2 Distributor Manifold With Ball Lock Disconnect post,co2 Splitter for Homebrew Beer Making Brewing Tool(2 way), Sliver – affiliate link, note that multiple variations of this product may be available, as such a different version may appear at this link
Also Consider:
Stainless Steel Ball Lock Jumper with Food Grade Silicone O-Rings: Allows you to connect multiple ball lock runs to clean multiple lines and taps at the same time. Works with both liquid and gas QDs. Stainless Steel Ball Lock Jumper – via Valuebrew – An easy add-on… food grade o-rings, featured in our Keg Rebuild Post