We are interested in: Camlock and groove couplings: For all sizes. Material: Aluminum and stainless steel - type a: Male adapter x female - type b: Female coupler x male - type c: Female coupler x hose shank - type d: Female coupler x female - type e: Male adapter x hose shank - type f: Male adapter x male - type dc: Dust cap coupler - type dp: Dust plug adapter For all sizes. Material: Aluminum - type aa: Male adapter x male adapter - type da: Female coupler x male adapter - type cr: Female coupler x hose shank - type er: Male adapter x hose shank.If you have any question or comment about us, pls contact me without hesitating .