Pioneer O-Rings for 1/2″ Pioneer Couplers – 5 pk
• Replacement interface O-rings for 1/2” Pioneer couplers
• 90 Durometer Nitrile compound long service life
• Replacement seal for the 4000, 4200 and 8200 Series 1/2″ couplers
• Also used in the 4056, 4060 and 4065 couplers and adapters




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