Length of plastic arm: 46mm (1 -7/8inch)
Outer diameter of thread: 20mm
1/2 inch MPT (although actual diameter of outer thread is more like 3/4inch)
This is the more common version of this switch found in the UK, used on Tubs such as Beachcomber and more.
You would usually find this part fitted in to a clear section of pipe work.
The arrow on the side must point in the direction of the flow and the thread must be wound all the way in.
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