Simpson E-Z-Click Stiff Flange flush mount injection port EIP-EZA 100PkThe E Z Click injection system is composed of a specially designed fitting and ports that take the mess out of your repair project while allowing you to work faster. The E Z Click injection fitting installs onto the end of the Optimix mixing nozzle and clicks onto the E Z Click ports during injection. EIP EZA : E Z Click flush mount injection port