Negative Positive
Title: Purr 3 Stage
Review: I replaced three of the Purr 3 stage filters for my mother-inlaw in approximately 1 year. We kept replacing the unit because she had an initial investment in a 6 pack of filters, but after the 3rd unit failed we decided to cut our losses. The units would leak upon initiation of the filter. I took the last unit apart and it was apparent that the internal o-ring seals were being damaged by the twisting action associated with activating the filter. We have had a Teledyne unit for over ten years and never experience a problem. Needless to say, the mother-inlaw will have a new Teledyne unit in the near future. Apparently, Teledyne has better rocket scientists.........
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