Stucchi Hydraulic Flat Face Quick Release Coupling Set 1/2″ BSP. Q: Are these genuine Stucchi couplings?. Yes – these are genuine Stucchi ISO 16028 flat face couplings.Q: Do they prevent oil loss?. ISO 16028 • Flat Face • Leak-Free • Hydraulic Quick Release • 1/2″ BSP.
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