Check the listing for details. USA SELLER 100 CHLORINE SANITIZER TEST STRIPS 2" FREE SHIPPING USA ONLY. Condition: New. Listed at 7.95 USD. FREE SHIPPING US ONLY NEW NEW NEW FMP SK-TWC-Chrome Chlorine Sanitizer Test Strip Tape 100/Vial2" in lengthThis FMP (Frankin Machine Products) SK-TWC-Chrome litmus test strip is for chlorine sanitizers. Sold by the vial. 100 test strips per vial. 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 GREAT FOR HOME, ESPRESSO SHOPS, BARS & RESTAURANTSFREE SHIPPING US ONLY NEW NEW NEW FMP SK-TWC-Chrome Chlorine Sanitizer Test Strip Tape 100/Vial2" in lengthThis FMP (Frankin Machine Products) SK-TWC-Chrome litmus test strip is for chlorine sanitizers. Sold by the vial. 100 test strips per vial. 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 GREAT FOR HOME, ESPRESSO SHOPS, BARS & RESTAURANTS