For 12 diffusers I would consider 2 or 3 Gast rotary 1/4 hp or one 3/4 hp or even a 1 hp would be better to run 12 diffusers. I run 5 - 10" disk diffusers at three air stations with a 1/4 hp gast rotary.

Last edited by Bill Cody; 08/21/25 01:58 PM.

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