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Solid brass industrial style Quick Connect Air Couplings helps you quickly switch between different air tools and accessories. Pneumatic coupler air connectors feature reliable seal airtight. It is a must have air fittings for pneumatic tools, air compressors, air blow guns and air hoses etc. The industrial style, or industrial interchange, is compatible with M, D and I/M style couplers. The solid brass construction provides high corrosion resistance and prolong service span. Recommended to use Teflon tape.
| Body Size | Connecting Type | Part Number | Material |
| 1/4 | 1/4-18 NPT Male Thread | ACI22M | Brass, Steel |
| 1/4 | 1/4-18 NPT Female Thread | ACI22F | Brass, Steel |
| 1/4 | 3/8-18 NPT Male Thread | ACI23M | Brass, Steel |
| 1/4 | 3/8-18 NPT Female Thread | ACI23F | Brass, Steel |
| 1/4 | 1/4 Hose I.D., Barbed | ACI22H | Brass, Steel |
| 1/4 | 3/8 Hose I.D., Barbed | ACI23H | Brass, Steel |
| 3/8 | 1/4-18 NPT Male Thread | ACI32M | Brass, Steel |
| 3/8 | 1/4-18 NPT Female Thread | ACI32F | Brass, Steel |
| 3/8 | 3/8-18 NPT Male Thread | ACI33M | Brass, Steel |
| 3/8 | 3/8-18 NPT Female Thread | ACI33F | Brass, Steel |
| 3/8 | 1/2-14 NPT Male Thread | ACI34M | Brass, Steel |
| 3/8 | 1/2-14 NPT Female Thread | ACI34F | Brass, Steel |
| 3/8 | 3/8 Hose I.D., Barbed | ACI33H | Brass, Steel |
| 3/8 | 1/2 Hose I.D., Barbed | ACI34H | Brass, Steel |
| 1/2 | 3/8-18 NPT Male Thread | ACI43M | Steel |
| 1/2 | 3/8-18 NPT Female Thread | ACI43F | Steel |
| 1/2 | 1/2-14 NPT Male Thread | ACI44M | Steel |
| 1/2 | 1/2-14 NPT Female Thread | ACI44F | Steel |
| 1/2 | 3/4-14 NPT Male Thread | ACI46M | Steel |
| 1/2 | 3/4-14 NPT Female Thread | ACI46F | Steel |