Product Price Quantity Subtotal Digital Water Meter $279.00 Digital Water Meter quantity $558.00 Digital TDS Meter $24.95 Digital TDS Meter quantity $49.90 3M Aqua-Pure AP110 Filter $28.00 3M Aqua-Pure AP110 Filter quantity $28.00 Hardness and Iron Test Kit $69.00 Hardness and Iron Test Kit quantity $69.00 Coupon: Apply coupon Update cart Cart totals Subtotal $704.90 Tax $49.34 Total $754.24 Continue Shopping Proceed to checkout