OmniFilter OK7-DC6-S06 Accessory O-ring , Black

I was in the process of changing the filter when I grabbed the O-ring set. I placed the blue O-ring in the housing and the O-ring was too big. The O-ring would not seat. Since I had bought multiple sets, I checked each set and each set contained incorrect sized O-rings. Luckily I had one more set of the older packaged K4 OmniFilter O-Ring Set with the correct blue O-rings that fit. Another issue is that the "older" packaged K4 OmniFilter O-Ring Set contained O-rings to do two filter tanks; the newer packaged K4 OmniFilter O-Ring Set contained O-rings for ????. Maybe the newer packaged K4 OmniFilter O-Ring Set will work for other makes and models, but not the OmniFilter!

I have a duel under the sink filter and only one of the 4 gaskets fit. I need another one ( the blue one). Do you know how Ican get the order number for the gasket ?

Fit perfectly

Had to buy the set to get the O-ring I wanted, but it did the job.

I used this product for my hole house water filter unit.

Excellent product and service. Works like a charm.

The o ring in this set fit our water filter set very well. I downgraded the rating because when I ordered, the information didn't mention that a special lubricant was needed or strongly suggested when installing.

Just what I wanted. Thank you