Fittings: Female Elbow 90 : 20mm*1/2"-32mm*1" Male Elbow 90 : 20mm*1/2"-32mm*1" Female Coupler : 20mm*1/2"-63mm*2" Male Coupler : 20mm*1/2"-63mm*2" Coupler : 20mm-110mm Reducing Bush : 25mm*20mm-110mm*63mm Reducing Elbow : 25mm*20mm-50mm*40mm End Cap : 20mm-110mm 90 Bend : 20mm-110mm 90 Tee : 20mm-110mm Female Tee : 20mm*1/2"-25mm*3/4" Male Tee : 20mm*1/2"-25mm*3/4"