Girard Equipment, understanding the necessity for long-term value, has made the DOT 407 Vacuum Pressure Vent the most user-friendly and easy to maintain component available. The overall savings based on its longevity and capacities going as low as one bar (15 PSI) to ten bar (150 PSI); makes this Girard Equipment staple a must have for the safety of road tankers across the globe. To find out more about this exceptional vacuum breaker visit www.girardequip.com.