The new design features Zero Draft™ internal walls, improved fluid flow characteristics and reduced turbulence. External ribs at the outlet end prevent splitting when installing fittings or nozzles.
The ¼" NPT outlet has precision molded threads and a tapered counterbore for a secure, leakproof seal. A molded hex around the outlet fits into a matching orifice on the cartridge retainer to permit fast, tool-free installation of fittings and nozzles.
Optimum cartridges are available in clear, UV-blocking amber, light-blocking black, and green configurations. Capacities include 2.5 oz (74ml), 6 oz (177ml), 12 oz (355ml), 20 oz (591ml), and 32 oz (946ml).
Note : Optimum cartridges are backward-compatible with most retainers on the market today.
Follow these guidelines for safe operation.