Premium Materials: The gun body is made of high-quality thick stainless steel, offering wear resistance, impact resistance, and high strength to prolong service life. Super Suction: The upgraded rubber piston is precisely engineered to match the stainless steel gun body, ensuring low resistance and high suction power for efficient cement loading. New Design: Features a newly designed round nozzle with a diameter adjustable from 4 to 14 mm. The replaceable small white nozzle provides added versatility to meet various application needs. Ideal for grouting floor tiles. Size and Application: Gun body dimensions: 660 x 140 mm. Nozzle options include round (4–14 mm), flat (52 x 10 mm), and large flat (51 x 19 mm). Suitable for use with standard mortar, epoxy resin, and similar materials.