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Couplings

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  • Use a Small End Coupling (male) for connecting pipe to pipe and flexible hose to pipe. 20 gauge galvanized construction. NOT FOR FITTING TO FITTING.
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  • Use a Large End Coupling,  (female), part no. COU2, or short piece of spiral pipe for connecting fitting to fitting. 20 gauge galvanized construction. NOT FOR PIPE TO PIPE.
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  • Inside/Outside Couplings have one Small-End which fits inside Spiral Pipe or Metal Flexhose and one Large-End which fits outside Spiral Pipe or Metal flexhose. The 03IO will fit 80mm machine collars. When using I/O Coupling, install in direction of air flow for a smoother inside surface. 20 gauge galvanized construction.Small-End is O.D. even inch - 1/16".  Large-End is I.D. even inch + 3/16".
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