| http://www.w3.org/ns/prov#value | - the take off dimension is not that great of a concern with the double unions and rubber washers. the union nut size and thread is a concern and I do not know the answer as watts is not a regulator I use or come by. if you buy the wilkins 70, you can remove the old regulator and check the nut thread from the wilkins to see if it fits the watts and vica versa.
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