I got it at Lightingdirect.com it was $92.00 with free shipping and I found a coupon code online so it was $82.80. I added a switch to the junction box and I have High and Low. Here is a pic installed.
I have a 100x..and it is very quiet the only thing is i feel like it looses a lot of cfm with acarbon filter. Wish i would have gone with the 125 for my 2x2x4 box.Best thing them is they have 2 speed settings. Low/high