Product review (5 stars): Great Kit
I'm the office administrator at our company and we have 2 Aprilaire 700's. We recently one was leaking water, so I opened it and found a crack in the bottom of the frame. The owner called his plumber and got a quote of ~$250. It seemed like a lot, so I decided to see if I could a just find a replacement part myself instead.

As always, Amazon was my first stop and I easily found this kit. Originally I just planned on buying a replacement frame, but we've been in this office going on 7 years, and after reading the reviews saying the filter should be regularly replaced, I decided to get this full kit instead. I've never replaced one before, but it turned out to be quite simple. After reading the instructions, I think it took me about 20 min from start to finish. You just need a few wrenches, and I had to use a needle nose to help with the hose.

After comparing the old filter with the new one, it was very apparent they need to be replaced every so often. However, I doubt you need buy the entire kit every year. The old water line and intake filter had a lot of mineral build-up though, so it's probably a good idea to buy the full kit at least once every few years.