The GYMATIC 3B Unloader with Adjustable Chemical Injector is a professional-grade pressure washer control valve designed to regulate system pressure while providing an integrated, adjustable chemical injection function. Manufactured in the UK and based on the proven Annovi Reverberi RK & XM unloader design, it is suitable for a range of commercial and industrial pressure washing applications.

Key Features

• Integrated adjustable chemical injector for precise detergent or chemical dosing. 
• Heavy-duty brass construction for durability and corrosion resistance.
• Designed for use with RR, XM, and RK pump series.
• Suitable for high-pressure cleaning systems up to 250 bar (3,650 PSI). 
• Handles flow rates between 13 and 18 litres per minute. 
• Maximum operating temperature of 90°C, making it suitable for hot and cold water pressure washers.