Mettler Toledo Membrane Kit F/ISE Ammonia. Include the E-Series Fast Strain Double Membrane with Quick Strain Tip (KIT-ST) the E-Series Fast Strain Double Membrane with Quick Strain Tip (KIT-ST) and the E-Series Semi-Transparent Clear Membrane with Quick Strain Tip (KIT-ST). The E-Series Fast Strain Double Membranes include the E-Series Single Membrane with Quick Strain Tip (KM-ST) and the E-Series Semi-Transparent Triple Membrane with Quick Strain Tip (E-TAK) with the color change at the opening of the membrane. The E-Series Triple Membranes provide exceptional sensitivity and selectivity with an expanded transition range and a two-year service life. Specifications for Mettler Toledo Membrane Kit F/ISE Ammonia 51340013 : Description: MEMBRANE KIT F/ISE AMMONIA (Please note that the description and stock photo may not correspond to the specific model listed above) We offer only genuine Mettler Toledo products authorized for sale in the U.S. and other markets so you can be sure that you are buying authentic pH Meters with a full manufacturer's warranty in addition to our own 100percent Satisfaction Guarantee. We are your premier online distributor for Mettler Toledo pH Meters. We are an authorized supplier to all federal and state government agencies as well as to research and educational institutions and can facilitate volume orders on many types of laboratory equipment lab consumables and other products to help fulfill your specific needs. We offer Free Shipping and FREE USPS shipping to APO and FPO addresses on all orders in our store over 49. Please refer to our APO/FPO Shipping and Export Restrictions for more information on export to APO/FPO addresses. In addition to the Mettler Toledo Membrane Kit F/ISE Ammonia 51340013/ 11277-366 we carry a full complement of pH Meters as well as other product offerings from Mettler Toledo. We also carry a full line of Mettler Toledo accessories to help meet your laboratory and scientific needs. For a complete selection of Mettler Toledo pH Meters please visit our Mettler Toledo page. For more brand name pH Meters please visit our pH Meters store section. To see our complete line of lab medical industrial and scientific products please see our science and lab equipment online catalog. Mettler Toledo Membrane Kit F/ISE Ammonia 51340013