White-Rodgers F84-0435 1 1/4 zone valve stem assembly
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Bought this item as a spare / pending expansion of system (someday!). Found out the hard way what happens without one. Item is perfect and does its intended job.
Selling company was great.
Will do business with them again when needed.
Replacing the leaking one went really well. Pulling the bad one out was a little challenging. New one works great, no leaks. Thanks, Mike