Applications Pneumatic gun for two-component cartridges 620ml ratio 1:1 Characteristics 620 ml cartridge 1:1 ratio Properties RBA 300B is a PC COX SULZER pneumatic gun. RBA 300B is a pneumatic applicator for 620 ml two-component cartridge with a 1:1 ratio (310+310 ml). RBA 300B is ergonomic, very robust and easy to use.  This RBA 300B pneumatic dispensing system from the manufacturer PC COX SULZER enables the use of products of type ACROBOND A and ACROBOND PU and ACROBOND MS and ACROBOND EP. Other pneumatic guns from PC COX SULZER are available for products requiring different mixing ratios.