150CNOSSS by Dixon Valve | Cam & Groove Coupler | Type C | 1-1/2" Coupler x 1-1/2" Notched NOS Shank | 316 Stainless SteelFeatures: System allows you to better manage your inventories, you can stock one stem and two ferrules, and cover the same hose range with less inventory, you must purchase a fitting and the matching ferrule to create an assembly. Note: For hose outside diameters of 2 4 64" and below, the couplings are crimp only. For hose outside diameters of 2 5 64" and above, the couplings can be crimped or swaged. Only use the NOS shank with the NOS ferrules.