Product review (1 stars): Wrong Filter in the Box
I bought one of these from Amazon 9 months ago and installed it no problem. I just received this same filter and tried to install it and it didn't come close to fitting properly. Comparing the Waterfall old filter and the new one it was obviously NOT the same filter - the locking lugs were completely different! The filter model on the sticker on the filter itself was identical to the old one. In other words, the Waterfall Filter company's factory has mislabeled the product!

I need a replacement, but I'll have to return this one and order a different brand.