Valterra T1001-7VP 1-1/2" Valve Seal with Hardware, (Set of 2)
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Questions & Answers
It is not possible to replace Bristol valves with Valterra seals. In addition to the valve, the Valterra seals can be used to replace a Valterra valve that needs to be completely replaced.
Although I don't know what a 6101 valve is, perhaps you could explain your requirement to me and I will be able to help.
It is around 2000 when the cutoff is applied.
These valves are compatible with any 3" Valterra.