Product review (4 stars): Leaking with some recent batches, but easily fixed
Like some of the other recent comments on this product, I have been using these filters for a few years without issue.  The price is much better than getting the official branded filters, and the water tastes great.

With my last order, we started having pools of water form underneath our filter.  I applied some of the sealant (included) on the gasket and o-rings around the top of the filter, and it appears the leaking has stopped.  It was a simple process that took <30 seconds.  The sealant has always been included but I've never had to apply it until now.