KIT,2″ HORN,TANTALINE,LR250 2″ HORN (FITS 2″ ASME OR DN 50 NOZZLES) ALL SURFACES OF HORN ANTENNA TREATED WITH TANTALINE SURFACE ALLOY 50 MICRONS TANTALINE 3 MTH MFG GUARANTEE PART IS TESTED FOR INTEGRITY OF THE TANTALUM LAYER BY FULL IMMERSION IN HOT HYDROCHLORIC ACID FOR AT LEAST 48 H HTTP://WWW.TANTALINE.COM/