0904 17 21 by Parker | Legris Reducer | 1/2" Male BSPT Thread x 3/8" Female BSPP Thread | 22 mm Hex | 19.5 mm Length | Straight | Nickel-Plated Brass | Pack of 50Adapters and Manifolds: Part Number C1 C2 F L Kg 0904 10 13 1 4" 1 8" 14 mm 16 mm . 010 Kg 0904 10 17 3 8" 1 8" 17 mm 16. 5 mm . 020 Kg 0904 13 17 3 8" 1 4" 17 mm 16. 5 mm . 015 Kg 0904 13 21 1 2" 1 4" 22 mm 19. 5 mm . 031 Kg 0904 17 21 1 2" 3 8" 22 mm 19. 5 mm . 024 Kg 0904 17 27 3 4" 3 8" 27 mm 23 mm . 056 Kg 0904 21 27 3 4" 1 2" 27 mm 23 mm . 045 Kg 0904 21 34 1" 1 2" 34 mm 27 mm . 101 Kg 0904 27 34 1" 3 4" 34 mm 27 mm . 074 Kg