I've been using these filters for about four or five years, and just discarded my third unit after it developed small cracks near the indicator (as others have experienced), resulting in a fine spray of water on to me whenever using the filter. This was not fixable, despite repeated attempts with epoxy and silicone. I finally switched to a Brita unit, the design of which I like much more: it takes up less space, has fewer moving parts, and appears less likely to malfunction.UPDATE:After several more months, I've had no problems with the Brita, and still prefer it to the Pur.SECOND UPDATE:The Brita didn't work out for me; it stopped working after a short time. I'm now using the Culligan, and liking it.