Update: Originally the step 5 filter was different than the original filter I had with my reverse osmosis system. They reached out and gave me a replacement (it was the same filter without the Y-connector) but this time it came with an adapter (see 3rd picture). All you have to do is plug the Y-adapter they gave you into the Stage 5 filter (same end as the original) and plug everything back in the way it was originally. With this adapter everything works as it should and the filters work great. Updated my star rating for excellent customer support. Level 5 does not correspond to the 6-level iSpring filter (see images). The original ending was divided into two endings, and the new one - one. This stage 5 has an end to be split into the tank and also back into the filter. However, you cannot connect to them. You can't remove the tip to try the old fitting. "12/2019" is written on the new fitting.
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