Get 50% off Aquasana water filtration systems when you enter our promo code BRADS50 during checkout at Aquasana.com. Plus get free shipping and a free professional installation kit, which is normally $91.30! Please note that you need to select the free pro-grade installation kit before adding the filtration system to your cart. For example, this Rhino Series 600,000-Gallon Whole-House Water Filtration System drops from $1,198 to $658.90. Add it to your cart along with the pro-grade installation kit that sells for $91.30. At checkout, apply our code and the total price drops from $750.20 to $599. This ties with the lowest price we've ever seen. These filtration systems remove chlorine, heavy metals, and volatile organic chemicals from your home's water supply. The promo code should automatically apply at checkout, but there is a box to enter the code if the discount is not reflected in the total. Sales tax is charged in most states.