Vapor-Flo 8930Freight not included. The Vapor Flo 8930 is an upgrade from the 8920 model. Although many features remain the same, such as pressure level (2030 psi), flow rate (1. 7 GPM) and motor size (3. 0 HP), the 8930 offers higher cleaning temperatures. The machine heats water to 205F in as little as 20 seconds, making the unit ideal for tougher jobs that require high temperatures to break down dirt, grease, and tough stains. The equipment can also operate in