The Reactor (gen 1) proportioners are designed for low to medium-output spray foam applications. This entry-level, portable spray foam machine outputs range from 10 lb (4.5 kg) up to 25 lb (11.3 kg) per minute. Equipment includes both air and electric powered machines. Some models are designed to be used as a portable spray foam machine with on-board tanks and reduced power requirements. Controls are simple, with limited features. These machines are designed for long equipment life, more up time in your spray day, and the overall Graco reliability and durability you've come to expect.