0144 21 21 by Parker | Legris Equal Stud Fitting | 1/2" Male BSPT Thread x 1/2" Female BSPP Thread | 90° Elbow | Brass | Pack of 10Adapters and Manifolds: Part Number C1 C2 E G H J L Kg 0144 10 10 1 8" 1 8" 7. 5 mm 16. 5 mm 23 mm 12 mm 22. 5 mm . 018 Kg 0144 13 13 1 4" 1 4" 11 mm 18. 5 mm 26 mm 15 mm 26. 5 mm . 056 Kg 0144 17 17 3 8" 3 8" 11. 5 mm 23. 5 mm 30 mm 19 mm 31. 5 mm . 086 Kg 0144 21 21 1 2" 1 2" 15 mm 28 mm 35 mm 23 mm 34. 5 mm . 139 Kg 0144 27 27 3 4" 3 4" 16. 5 mm 34 mm 40 mm 27 mm 43. 5 mm . 153 Kg