Water Sentinel WS-21 Calcium Inhibitor Filter and Misting System Protector, 3-Pack

I previously bought this product at Lowe's for my backyard misting system. Since I started using this I have ZERO clogs in the mister heads. I have now hooked one up to my patio swamp cooler and I expect it will extend the life of the cooler and the pads. A nice buy on a nice product.

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