Captain O-Ring - OR-250 Filter O-Ring (3 Pack) (Replacement for Culligan WH-HD200-C, 3M 3WH-HD-S01, Dupont WFAO100, 3M AP801B/T, AP802B/T, Hydronix HF45, etc)

Received quickly and without damage. I bought these for my Pentair Big Blue water filter and they fit better than what was supplied. Will definitely order again when needed. If using for the same purpose, be sure to lubricate with food grade silicone grease to prevent stretching and allow for a better seal.

They fit my Culligan Whole House water filter to perfection. I use a little silicone grease to hold it in place.😃

Perfect fit for my Culligan whole house water filter

It came with two different size O-Rings. So I got one that worked, so I was happy. But I was hoping for two the same size, so I didn't have to go shopping for a new one for a while.

Exactly what I was looking for. Worked with my 24 yr old Reynolds water conditioner.

The proprietor at Captain O-Ring goes out of his way to find the correct original O-Ring and to suggest a suitable oversize O-Ring for difficult instances where leakage has been a problem. This item is once such upgrade. The material used is very long-lasting, and does not permanently compress. This means a user can get several filter changes over a year's time before having to replace the gasket. Highly recommended.

These O-rings fit my Nuvo H2O Manor Duo perfect! Don’t order the O-rings from Nuvo - they are too small and will leak! I tried 4 from Nuvo and they all leaked.

I recently had a whole house filter installed out at my well house, it came with a spare 0 ring but I could not find a matching size at my local plumber shop so I order these. They are just slightly bigger than the one I had on hand but I just changed out my filter and these fit perfect with no leaks. I now have some spares on hand for future swaps and now know where I can find more as needed.....

I have a Waterite HL101LBUR 10" whole home water filter. The OEM O-rings are RKE0013HL-B. I purchased a set of O-rings a while back that were listed as the OEM size equivalent but have had problems with those O-rings not sealing after a first use. They seem to pack down and when re-used not seal properly allowing very slow seeps for a short while, eventually sealing again. I felt the oem O-rings were always a bit too small in cross-section size, sitting only very slightly proud of the filter body surface. When I went looking for an alternate, the option I found that is slightly larger in cross-section is a Culligan O-ring part #OR-250. My original O-ring is listed as 0.193" thick, where this OR-250 version is the same diameter, but the cross-section is 0.210" thick. So it fits perfectly in the same filter O-ring groove (which is oversized for the oem O-ring, but the slightly larger cross-section means it sits higher in the groove, contacts the base sooner when tightening, and squishes a bit more to match any possible imperfections between filter housing and filter base. I'm hoping it has a bit more rebound on repeated uses as well so I can get more than one use out of it before having to replace it. I've only done a first install so far, and it has worked perfectly, sitting taller in the groove as expected, and sealing perfectly on first tightening. I'll report back in 4-6 months after my next filter replcament and advise how it works on a subsequent use. I expect it should work much better than the oem size due to it's slightly larger cross section, as long as it doesn't take too much of a "set" after first use. I recommend this item and seller based on my experience so far. See the attached photos for my filter housing style and how this O-ring fits in the groove.

Basically got 3 of these for the price of 1 original Culligan. They look to be the same but won't know for a few months until I change the filter.