1010 Pcs O-Ring Kit. Plumbing systems. Ozone and weather-resistant. 22 sizes to expertly cover your needs: ID (3mm, 4mm, 4.5mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 12mm, 13mm, 14mm, 17mm, 18mm, 20mm, 22mm, 25mm, 27mm).
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