WATERSTICKS are uniquely designed affordable portable water softeners for your shower, RV, carpet cleaning machine, spa, expresso machine, patio mister, aquarium, solar panels or any other use requiring soft water. WATERSTICKS portable water softeners are made of PVC (strong, durable and inexpensive) instead of expensive SPUN FIBERGLASS which keeps their cost low. They are designed to soften your water to remove minerals like calcium, magnesium and iron. WATERSTICKS are easy to hook up or install (the SHOWER WATERSTICK installs in place of your existing shower head). When the WATERSTICKS stop doing their job, YOU can easily regenerate them with plain table salt! (or POTASSIUM CHLORIDE for persons on a low sodium diet). No electricity or expensive chemicals to replace! The CAR WASHING SOFTENER/DEIONIZER attaches to the end of your water hose and is designed for washing cars, boats, motorcycles, airplanes and RVs (recreational vehicles) with pure deionized water. It provides SPOT FREE/TOWEL FREE vehicle rinsing. Unlike our other water softeners the CAR WASHING SOFTENER/DEIONIZER must have its resin replaced when exhausted.