I had a water filter on my main water before it goes to my water softener and then all my facets. Three years ago my well collapsed and before I knew it the mud destroyed my water softener, my main water storage tank and filled most of my water lines. None of these items were covered by my home insurance. I dug my well another 100 feet and pumped water 8-10 hours a day for three months. I had to buy a new storage tank, water pump, plumbing, wiring and water softener. I know there are three different water filters in my house. Back to my purchase of 6 o-rings. I had to replace one and bought it in a multipack. I was only able to use one as they were all different o-ring sizes. As I currently have three filter systems, they all use the same size o-ring. Revain was the best price compared to other companies and I have spare o-rings for all of them. I had very friendly service and received it in just a few days. I am very happy. Thank you John
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