Watts Regulator FBV-1 Yellow Handle Only 9414
This is in good used condition as pictured
See my pictures of the Actual item you will receive
Approx length is 5 1/4"
The opening where it attaches is approx 1/2" long x 1/4" wide
It is marked Taiwan 93 11 on the metal part on one side and F1361FR on the other side
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