Culligan P5-4PK Standard P5 Whole House Premium Water Filter, 8,000 Gallons, Value 4-Pack, White, (Pack of 4), 4 Count

If you are using this for well water, please note that right on the packaging when you get it- in the left hand front bottom corner- that it should not be used for untreated well water. I am not sure what else you would use if for. I used this filter years ago when our well was new and I do not remember there being such a warning. One might want to go to the 10 micron or finer size for well water and expect to change it more. I use the 10 micron filter from the same company and like them very much over the years. The 4.5 micron is also good but requires frequent replacement when a well is new or there is a lot of rain. I was hoping to use this as we just put in a new well pump and there is a lot more sludge in a new installation, but I am hesitant to use it now due to the explicit warning.

For the last 10 years, these filters definitely do the job they are supposed to do, especially the iron in my well water. Do NOT be stingy! Change your filters every two months as recommended and enjoy clear, clean water. Hey Culligan Man! ;-)

I recommend that no one buy this filter, in fact anything from Culligan. The quality of this product has changed in recent years such that it should be banned from the market. The problem is that the polymer endcaps fail in what is called punching shear. I have used this make and model of filter for 10 years without a single problem until this past year. I purchased a few years supply of filters at once (as I normally do) in 2010 and noticed the endcaps were of a softer material than in the past, but I didnt think much of this since these endcaps also serve as the gaskets. However, upon removal of this filter after using it for a few months (my typical use) I discovered the filter medium and endcaps had collapsed (not disintegrated) like an accordion, while the center core remained straight and at its original length. Closer inspection revealed the endcap had failed in a ring around the point of contact with the filter housing. This is the location where a separate gasket would be on top of the filter. Unfortunately, this did not turn out to be a one-time occurrence. The exact same failure has happened with three subsequent filters, even though I cut the use period in half. Clearly, this whole batch of filters is defective. I have been in contact with the manufacturer (Culligan) over the past few months, and after some limited success at getting them to respond (which was a struggle I might add), they have eventually stopped replying to my emails. This is very poor for public relations. At first, I got several excuses as to why this was not their problem, the most interesting being their claim that the filters I bought were not made by Culligan because they were not purchased directly from Culligan. I informed them that I purchased them from Amazon.com, but they still maintained this argument. I scanned the label on the filter, which clearly shows their logo and contact information (which I had used to contact them) and they became even less responsive. Then I placed the next logical step in the investigation for them to answer, and that is when they ceased to respond altogether. This statement was that if they claim they have no material defects, and since they feel the filter is a counterfeit knock off, then why havent they pursued legal action against the supplier to Amazon? I must conclude that they indeed discovered a material defect with their product and dont wish to continue the discussion for fear of later litigation. I have since researched and found alternate brands of filters (I use both a sediment filter and carbon filter in my system) and will avoid ever using Culligan products again. I will also recommend to anyone that I can to avoid this manufacturer. That is what has compelled me to write this review.

This filter works very well, for catching sediment the occurs naturally in spring and well water. Depending on the amount of sediment, in which I have little sediment and more iron the filter last about 3 months. That’s pretty good, you will get two filters in a pack for less then 9$, so that’s under 20$ a year for clean water, and bright whites.

Great filters for hard water including grit; cheaper here online than in store anywhere in town as of the date of this order!

Im pretty happy with these filters they work great. I set them up as a subscribe & save so every 3 months I get one in the mail automatically that way I never have to remember when to replace it. In the summer when I run the sprinklers and fill up the pool I switch it to bi-monthly. Our water here in the SW suburbs of Chicago is very hard the filter seems to take quite a bit of it out. The advantages that we can see are less mineral deposits in the dishwasher. I have also noticed that the filters in our RO water system came out allot cleaner this last time so maybe Ill experiment with letting them go a little longer. 1 YEAR UPDATE so Ive been using them for almost a year. And I must say im still very happy with their performance. The subscribe and save price has gone up by a dollar and change but doesnt bother me enough to find a different filter. I have had NO instances of my unit falling apart, tearing or disolving so these other folks must just have terrible water or be leaving them in WAY too long! Drained my water heater about two months ago and not too much sediment came out unlike in past years so they are definitly helping. (when I replace the filter its completely covered in rust deposits and I mean COMPLETELY covered. Its amazing what this thing is catching!) Im keeping the 5 stars they are pretty cheap and work well so all in all I think its a pretty good value.

Works good to keep dirt and sediment out of my water.

You do not get the ones pictured which I have used for over 15 years. the original ones lasted two months. the universal fit ones I got only last about two weeks and then they turn brown and start to disintegrate. They say Culligan but in my opinion they are after market items of inferior quality. I contacted Amazon and I was told they would check into it. They were on my subscribe and save list, but I dont believe I want to continue getting them. I am checking locally for this item. Update: I contacted Culligan today and spoke with a very nice man. He gave me valuable information regarding filter performance. I mentioned that the filters I received did not look like the one pictured that states made in USA. I forwarded photos of the ones I have and he said he would check Amazon reviews and forward the information to the appropriate party. The ones I got are made in China and said they were universal filters. They had the Culligan name on the package. I sincerely hope we get back the ones made in the USA.

It helped with our water right away

It did seem odd that a filter that was described on the packaging thus: REDUCES Sediment Rust Scale Dirt Course Sand Sand and then would go on to state: This cellulose cartridge is not recommended for use with untreated well water. One could only wonder what was left to Treat. Called Culligan and a technical rep explained that the statement referencing untreated referred to treatment for bacteria. Apparently if there is bacteria in the water they love cellulose and can rapidly compromise the filter by digesting it. I suggested to the Culligan rep that they be a bit more explicit in their disclaimer and specifically reference treatment for bacteria.