RQ-34 Roto Quick Coupling The W&H Roto Quick coupling is a connection piece for the transmission of media (air, water, electricity and light) between the supply hose of the dental unit and the air drives. W&H Roto Quick couplings are versatile to use and are suitable both for instruments with LED+, LED as well as halogen light. Your advantages at a glance: • Light • Flexible • Sterilizable • Free 360 ° instrument rotation • Continuous regulation of the spray water supply • Roto Quick non-retraction valve • 24 months warranty RQ-34 Features: • light • 6 Hole connection • Spray regulation.