The S-10 Gun is the most popular choice for use with the Central Cleaning System. It is rated for 600 PSI and 200°F, and can spray hot water up to 15 feet with high impact.
The S-10 has a 1/2 inch NPT hose connection, and is supplied with a 20 inch insulated spray barrel, one 0°, and one 15° fan pattern spray nozzle. When used with the Central Cleaning System, it is typically set up to deliver 5 GPM.