STANDARD
The standard barrel option is available in dedicated diameters corresponding to B, N, and H size hole applications. These barrel options combine to cover the complete range of hole sizes from B to P with size-specific inner tube adapters and check valve systems.
The ONE option is available in a single N size barrel configuration but can cover the complete range of hole sizes from N to P with field-replaceable grease caps, inner tube adapters, and check valve systems.
