Test Strips (50) (The Free sanitizing system) Leisure Time Spa
Free 4-Way Test StripsCheck sanitizer level, calcium hardness, alkalinity and pH withone easy-to-read test stripApplications:Weekly:Dip strip in water one time. Compare test results to chart on back of the bottle.Sizes:50 stripsCompatible With:Leisure Time Free sanitizing system, biguanide spas and hot tubsSame as: BaquaSpa Test Strips (25 qty) but you get (50) - Baqua Spa