What fans to pair with 633?


New member
I have a 633 and Panaflo fans. The 633 uses PWM to regulate fan speed, no my panaflo fans make the Pulse audible, so it gets rather annoying hearing after awhile. Just recently I had my fans on high (panaflo U1A's), I cleaned my filter, when I put it back on I accidentally nicked a blade and 3 blades sheared off...

So I'm in the market for some new fans, also I wouldn't mind some lighted fans, just wondering if I could get some reccomendations on a certain brand or whatever that doesn't make the pulse audible.

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