The HOKE GYROLOK reducers R/ME and R/EM reduce the fitting size: R/ME connects a metric tube to a fractional port, and R/EM connects a fractional tube to a metric port.


| Type | Reducer: R/ME (connects a metric tube to a fractional port) / R/EM (connects a fractional tube to a metric port) |
| Part Numbers | R/ME: 3R2[ ]ME ~ 25R16[ ]ME / R/EM: 1R3[ ]EM ~ 4R18[ ]EM |
| Material (GYROLOK series) | Material code in the [ ] of the part number: brass BR, 304/304L stainless steel, 316/316L stainless steel, Monel M, Hastelloy C-276 HC, Duplex 2205 DX3, Inconel Alloy 625, Inconel Alloy 825, Super Duplex 2507 D50, titanium TI, 254 SMO 6MO (available materials may vary by fitting type and size) |
| Dimensions (mm): R/ME Overall Length A by Tube O.D. Combination | tube 3 mm x tube 1/8": A 39.0 / tube 3 mm x tube 1/4": A 40.0 / tube 3 mm x tube 3/8": A 43.0 / tube 4 mm x tube 1/4": A 41.4 / tube 6 mm x tube 1/8": A 41.1 / tube 6 mm x tube 1/4": A 42.6 / tube 6 mm x tube 3/8": A 44.9 / tube 6 mm x tube 1/2": A 49.8 / tube 6 mm x tube 5/8": A 52.0 / tube 8 mm x tube 3/8": A 45.1 / tube 8 mm x tube 1/2": A 49.2 / tube 8 mm x tube 5/8": A 53.5 / tube 10 mm x tube 3/8": A 45.7 / tube 10 mm x tube 1/2": A 50.6 / tube 10 mm x tube 5/8": A 53.8 / tube 12 mm x tube 1/2": A 56.4 / tube 12 mm x tube 3/4": A 61.5 / tube 18 mm x tube 3/4": A 61.0 / tube 25 mm x tube 1": A 64.0 |
| Dimensions (mm): R/EM Overall Length A by Tube O.D. Combination | tube 1/16" x tube 3 mm: A 33.5 / tube 1/16" x tube 8 mm: A 37.3 / tube 1/8" x tube 6 mm: A 38.9 / tube 1/4" x tube 3 mm: A 42.1 / tube 1/4" x tube 8 mm: A 45.2 / tube 1/4" x tube 10 mm: A 46.1 / tube 1/4" x tube 12 mm: A 50.7 / tube 1/4" x tube 18 mm: A 54.1 |