Flow Switch question?

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I am looking for a flow switch.

Must be able to operate at >125psi air at max flow >200 lpm.

Must be able to cycle 15-35 times a minute continuous use.

Must be small <2" dia <3" long.

Must be able to operate in any orientation.

Must have SPDT switching at 12vdc.

Would like a fail open.

I have looked at a Malema flow sensor that uses a magnetic read switch.
This is just the type of thing any ideas?

Thanks

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