Air Regulator - Microphor Toilet

[Curt Sprenger]

We have the Microphor Air Operated toilet in our coach. The air pressure
regulator exhaust port is leaking, causing the compressor to cycle every
35 minutes. Microphor tells me that the regulator is defective, bad
seal(s).

Microphor wants $290 for a new regulator, $95 for Microphor to rebuild
ours, $65 for a rebuild kit.

Clippard wants about $15.00 for what looks to be the same regulator as
installed with our toilet.

Has anyone replaced this regulator? What brand, part #, cost, purchased
where, etc?

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Curt Sprenger 1987 PT38 8V92, Anaheim Hills, Calif.