1582 Akron Hydrant Wye Pyrolite v18 ev Quick release strap works like a A1135 Quick release strap works like a seatbelt buckle for fast and easy release connection of shoulder straps SCal D (Included) Data management software allows automatic uploading from the calibrator Important Thread Data: Please review this if you are not certain the type of threads your department has Inlet Choices Outlet 2 ½" Female NST (2) 2 ½” Male NST 3" Female NST (2) 2 ½” Male NST 3 ½" Female NST (2) 2 ½” Male NST 4”Female NST (2) 2 ½” Male NST 4” Storz Inlet (2) 2 ½” Male NST 4½”Female NST (2) 2 ½” Male NST 5”Female NST (2) 2 ½” Male NST 5” Storz Inlet (2) 2 ½” Male NST 6” Female NST (2) 2 ½” Male NST