Specification Brand : INSTA-TEST BulletPoint : Price For: Each Item: Test Strip Width: 3/16" Detects For: QAC Includes: 50 Strips Range Two: 0, 100, 200, 400, 800 ppm Testing Parameter Two: QAC Testing Parameter: QAC Number of Tests: 50 Range: 0, 10, 20, 40, 60, 80 ppm Type: Dual Range Length: 3" Country of Origin (subject to change): United States BulletPoint1 : As plants grow they extract nutrients from the reservior, in doing so, raise the potential hydrogen (pH) of the solution. This is particularly pronounced with large plants. Use the Stealth Hydro pH Contol Kit to manage pH levels. BulletPoint2 : The included 80 pH strips have a dual test indication, delivering super accurate results. These are not the cheap litmus paper style strips most other places try to sell you. BulletPoint3 : Easy to operate thumbwheel turns to dispense replaceable 15ft roll of chlorine or quaternary test strips BulletPoint4 : Refillable roll cartridge protects roll from chemicals or splashing BulletPoint5 : Innovative smart scale makes reading test strip results easy: green: safe; red: change solution Color : Cement Coverage : Large ExternallyAssignedProductIdentifier : 7750162409373 ExternallyAssignedProductIdentifier1 : 759376110317 ExternallyAssignedProductIdentifier2 : 211506135947 ExternallyAssignedProductIdentifier3 : 0759376110317 ExternallyAssignedProductIdentifier4 : 0211506135947 ItemForm : Sheet ItemName : Test Strip, Dual Range, 3in L. ItemPackageDimensions_Height : 0.762 centimeters ItemPackageDimensions_Length : 15.24 centimeters ItemPackageDimensions_Width : 10.16 centimeters ItemPackageQuantity : 1 ItemShape : Rectangular ItemTypeKeyword : ph-test-strips Manufacturer : INSTA-TEST Material : Crystal ModelName : Hztyyierwy709ng6p4 ModelNumber : 2934 NumberOfItems : 1 PartNumber : 2934 ProductDescription : ' Test Strip, Dual Range, Testing Parameter QAC, Range 0, 10, 20, 40, 60, 80 ppm, Testing Parameter Two QAC, Range Two 0, 100, 200, 400, 800 ppm, Number of Tests 50, Length 3 In., Width 3/16 In., Detects For QAC, Includes 50 Strips ' ProductExpirationType : Shelf Life ProductSiteLaunchDate : 2015-03-19T22:06:51.500Z Size : 7.2 - 8.8 pH Style : Detachable,Digital SupplierDeclaredDgHzRegulation : unknown UnitCount : 1