Guarantee & Replacement Cartridge Information

Model 77 Countertop

This guarantee applies to our Double Model 77s, as well.

This is the world’s best & simplest guarantee.

All parts of the Model 77 Countertop Filter are guaranteed for life. Any part that fails will be replaced without cost for parts, labor, or shipping by Pure Water Products, LLC. The single exclusion from this guarantee is the replaceable filter cartridge, an expendable part which should be changed by the owner. In most cases, annual replacement is recommended.

Unless an alternate cartridge is specified, your Model 77 filter is equipped originally with a MatriKX 1+ nominal 1-micron extruded carbon block cartridge. This is an exceptionally effective all-around cartridge available for a general-service countertop water filter. The MatriKX 1+ has almost unbelievable chlorine-removal capacity. It is a great all-around general chemical remover, a superb taste and odor improver, and it has a large capacity for chloroform removal. Chloroform, one of the chlorination-created chemicals classed as Trihalomethanes and regulated as a cancer causer by the EPA, is present in all chlorinated tap water. It is also recognized in the industry as a “surrogate” for many other contaminants. Experience has taught that a filter that removes chloroform will also be effective against a wide range of other chemical contaminants. The MatriKX 1+ has a chloroform capacity of about 750 gallons—slightly over a year for most users.

Other frequently used Model 77 cartridges are the MatriKX pb-1, a top quality carbon block filter that is also rated for lead and cyst reduction, and the Di-Tech MAX, a granular cartridge that contains high grade filter carbon, KDF (a metallic medium specific for chlorine and lead removal), and an ion exchange resin. These and many another cartridges that will fit your model 77 filter are available on our websites at www.pwgazette.com/filter.htm or www.countertopwaterfilters.com/cartridges.html.

It is usually recommended that the cartridge in your countertop filter be changed at least once a year. A Model 77 cartridge will usually still remove chlorine and improve the taste and odor of your water well after a year, but like all carbon filters, it will start “leaking” certain contaminants into your water before you notice a change in taste.

Important Note: If you purchased your Model 77 filter from Pure Water Products, LLC, or if you return the warranty registration card enclosed with units purchased from other retailers, Pure Water Products will send you an annual cartridge reminder notice. It’s just a reminder that it’s time to replace the cartridge to which you can respond if you choose (or which you can ignore if you choose).