Airline Suzies M22/M22 with couplings Trailer Airline Suzi Red: Tractor/Handle end= M16 male to M22 male with adaptor. Trailer End=M18 female to M22 male with adaptor. 600mm to 2800mm Max. Working Pressure approx 350 psi Burst .Pressure approx 700 psi. With Coupler Air Male Trailer C Type C10 Thread = 22mm Female. £44.50 + VAT With additional Female Coupling on other end – £59.99 + VAT Trailer Airline Suzi Yellow: Tractor/Handle end= M16 male to M22 male with adaptor. Trailer End=M18 female to M22 male with adaptor. 600mm to 2800mm Max. Working Pressure approx 350 psi Burst .Pressure approx 700 psi. With Coupling Air Female Trailer C Type C10 Thread = 22mm Female and Valve Lifter with thread M22 Male & M22 Female. £55.50 + VAT With additional Male Coupler on other end – £59.99 + VAT