Tetratec ones are very quiet. It might depend on how powerful you need it to be but my Tetratec 100 is almost silent inside my cabinet. It's still audible but merely a low hum. I'd bet your fridge would be noisier!
My Tetra Whisper 40 is perfect for my 40 gallon tank and is barely there I have the tank in my room and its on over night doesn't bother me a bit! So i'd say any Tetra pump should do!