Features & Benefits:

• Adapter to utilize the larger opening and the fullest flow.  
• It is an integral part of the system as the CH-8
• Designated at Tire and Rim as the CH-8
• Made of brass
• Made in USA

The R-520 is designated at Tire and Rim as the CH-8. It is an integral part of the system as the CH-8 is removed from the valve assembly with the Haltec IN-80A adapter to utilize the larger opening and the fullest flow.