I recommend iSpring WGB21B, this whole house water filter works great, installs easily, no leaks. I am very surprised about the difference of water, can drink our water now! My toilet and shower are no longer yellow!
I recommend Culligan WH-S200-C sediment water filter. To me this filter is absolutely amazing. As far as filtering goes, it works great. The water quality is so much better and there are no leaks.