John Guest® introduces its half-cartridge product catalog, which lists part numbers, tube ODs, box quantities and prices. Half cartridges are used for quick connections (no threads, flush mounting) to pumps, valves and manifolds in water filtration and beverage systems and in pneumatic applications. The catalog also provides complete information on cartridge assembly and cavity dimensional details for inch, metric and CTS sizes. To download a copy of the catalog, visit the website.www.johnguest.com