Weldless Ball Valve by Eagle Brewing.  1/2″ Female Thread on the inside.  That means you can add something like a kettle pickup tube or screen easily.  1/2″ Barb.  Features a 1/2″ full port ball valve.  Constructed of 304 Stainless.

Use to add a ball valve to your kettle, mash tun or HLT.

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Eagle Brewing Wl301 Stainless Weldless Ball Valve