Product Description: Commercial Quality Great for Any Restaurant, Bakery, Coffee shop FMP ( Franklin Machine Products ) 100 Strips Precision Chlorine Test Paper Franklin Machine 142-1361 Description Litmus Test Strips, for iodine sanitizers, waterproof vial with color-coded test chart Use dry fingers to remove strip of paper from vial, dip strip into solution to be tested, without agitation and compare immediatelt with color chart on label. This color indicates approximate strength of the solution inparts per million (p.p.m.) available chlorine. Time of test - 1 second Best Use Within 2 Years of Purchase. Quality: 1 pcs Refund or Exchange: All return require Carry Supply pre-authorization, must be made within 14 days of receive, in original condition with packaging (New and Unused), and subject to 20% restocking charge. Exchange or refund. We shall not be liable for any merchandise defects, spoilage of products, loss of sales, or consequential damages. Buyer is responsible for all associated shipping costs for undelivered, unclaimed, or returned packages unless we have made an error in the listing or the item is defective. If you ask for a refund during valid period, we will offer you a refund without postage charges. Shipping and handling charges, insurance are not refundable in any case.