#57 Vent Specs
Connection: 3/4″ Male x 1/2″ Female
Vent Port: 1/32″
Operating Pressure: 20 PSI
Height: 4 5/8″
Adjustable: No

#57 Vent Cross Reference
Dole: 55
Hoffman: 74

#57 Vent Features

• All Vents Are Factory Assembled, Tested & Inspected In The USA
• Each Vent Is Individually Packed With External Labeling For Convenience & Maintenance
• Our Vents Have All Brass Internals With Nickel Plated & Hand Polished Exterior
• Reduces Damage Caused By Water Hammer