METRITEST 1.8, FOR 28 DAY USE LIFE, 60 STRIPS/BOTTLE, 2 BTL/CS, SOLD AS CASE METREX 142Metritest 1. 8, For 28 Day Use Life, 60 Strips Bottle, 2 Btl Cs, Sold As Case Metrex 142 Metrex Metritest Glutaraldehyde Metrex Metritest Glutaraldehyde A Monitoring System For High Level Disinfecting And Sterilizing Solutions. Easy To Use. Quickly Determines If The Minimum Effective Concentration (Mec) Of 1. 8% Glutaraldehyde Is Present During Life Of Procide D, Procide D Plus Or Other Active Glutaraldehyde Solutions. Metritest 1. 8, For 28 Day Use