RAASM: For short/long distance grease distribution and high pressure greasing. Ideal for dispensing medium/high-viscosity grease. Suitable for mobile instalations and centralized fixed systems. Polyurethane seals, aluminum upper body suction tube and carbon steel suction tube. ¼” NPT (f) air inlet connection and grease outlet connection. Air working pressure: 90 – 120psi. Max air pressure: 120psi. Noise level: 81dB. 19” long suction tube with 1.18” external ø. Suitable for 35lb drums. 3.3 lb/min.