F Styles
USDA Forestry Couplings

Available sizes: 1″, 1-1⁄2″ and 2-1⁄2″

Configurations:
1″ – Two rocker lugs on swivels only..
1-1⁄2″ and 2-1⁄2″ – Three rocker lugs on swivel only..

Meets USDA Forest Service Spec 5100-108.