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Pro-Citric Acid can be used safely on virtually all surfaces
Premium high-capacity ion-exchange resin
High Resistance to Climate Conditions
Black and Grey - Made in the USA
tastes and odors in drinking water
Watts 4 Stage Manifold Reverse Osmosis PWRO4 Filter Pack Parts Pro-Citric Acid can be usedThere are lots of filter companies selling Reverse Osmosis filters, but if you look closely, you'll find that nearly all of them are made in Taiwan or China. While it is not always possible to sell everything that is American Made, this 4 Stage Reverse Osmosis Filter Pack is entirely made in the USA using NSF Certified Filters. Not only are they made in the USA, they're the best in the industry, Hands Down! You can trust your water to US Water. 4
