Reducer nipple 1/2" male thread to 13mm hose connector

Hose fitting for

Hose inner Ø

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Nipple outer Ø ---|--- 6.3 mm · 1/4"

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12 mm 8.0 mm · 5/16"

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12 mm 10.0 mm · 3/8"

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12 mm 13.0 mm · 1/2"

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12 mm 13.0 mm · 1/2"

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15 mm 16.0 mm · 5/8"

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15 mm