Available in sizes from 1 – 300 BBLs and in a variety of finishes, these brewery fermenters are ready to work. Features. 8” hop port. 360º CIP Spray Ball. Multi-Zone Glycol Jackets. All gauges and temp probes standard. Perlick-style sample valve. Design Pressure: 30 PSI. Pressure Vacuum Relief Valve: 30 PSI. DIN fitting racking arm.