1. ISO15552 (formerly ISO6431) tank chlorine cylinder 2. The piston sealing port is made of two solid Y-shaped sinusoidal sealing joints, which has excellent performance, high efficiency and low mechanical strength;3. Aluminum tube with rice-shaped shape, black tie rod, good anti-corrosion performance;4. The left cylinder & street thick arrow are stable;5. Multiple specifications of remaining cylinders and remaining cylinder installation accessories are available for customers to use. Category: Adjustable Cylinder, Brand: Airtac, Series: SIJ200