Product Description
Protects holding tank from excessive suction by dockside pumps by allowing air into the tank as it is being pumped out.
Easy to install with a 3" Hole Saw. Special sealing ring provided - no sealant or spinweld required.
Excellent odor seal.
Durable and reliable.
Meets proposed ISO requirement for 1-1/2-inch (38 mm) vent
Warning: This item may contain ingredients that are listed under P65warnings.ca.gov