Graco's Reactor-3 E-20 Elite Tier Spray Foam Proportioner Package is suited for contractors focused on smaller jobs or those just entering the spray foam business. It offers an ideal balance between performance and ease of use, making it a great starter machine. With smaller heaters, the E-20 is a perfect choice for contractors working in more temperate climates where high-capacity heaters are not necessary. Its compact size, combined with advanced control features, helps improve efficiency and productivity without the need for large-scale equipment.