Power Foamer Attachment For Pressure Washers, Gray And Black, Generac 7665. Enhance performance. Maximize convenience. Simplify maintenance. Boost your pressure washer?s performance with accessories from Generac. Products are available to maximize convenience and simplify maintenance for years of pressure washing performance. With the Smart Scrub Power Foamier attachment, you can pre-treat stains and create a thick foam for amazing cleaning results. The adjustable spray pattern allows you to cover wide areas or focus the blast for longer range. This universal pressure washer attachment can be used for gas pressure washers up to 3100 PSI. Universal Smart Scrub attachment is ideal for cars, boats, windows, siding and brick Creates a thick foam for amazing cleaning results Pre-treats tough stains Adjustable spray pattern: cover wide areas or focus the blast for longer range For gas pressure washers up to 3100 PSI