Gator Lock F Series 1 1/2 inch - Male Adapter - Male Thread. Features include: ENHANCED SAFETY Exclusive Cam Lever Locking Mechanism helps to reduce the possibility of unintentionally opening the cam levers, which could result in personal injury and costly spills. SMOOTH SEALING SURFACE Parting lines have been removed from the sealing area of the male couplings, as illustrated below, this reduces the possibility of leaks and wear to the rubber seal. EXPANDED PRODUCT APPLICATION By extending the nipple length of the B series this coupling can now be used in applications which would normally require an additional fitting to cam properly. These improvements and many others have been made to the Gator Lock cam lever couplings which allows Green Leaf, Inc. to offer you a significantly improved product at a price that is competitive to products without these improvements. Green Leaf, Inc. has brought exciting innovations to a product that has existed for years without change. These innovations have prepared this product for use in the 21st century while maintaining interchangeability with other designs.