Swivel Direct Flow Inserts, #10 Universal. Swivel Direct Flow#10 - Standard diameter #10 tip, lavender ergonomic 360° Swivel handle, Direct Flow water delivery. 25kHz #10 Universal, 25 kHz, Lavender. Ensures through-tip water delivery. Directs water flow to working end. Lessens excess spray. With the gray cone, the Swivel Direct Flow inserts come with all the properties of the Swivel inserts, along with different features. The unique design allows the water to flow directly to the tip, lessening excess spray, and maximizing visibility.It now comes with an extended 30k grip for better access and adaptability in posterior areas. Swivel Direct Flow always ensures greater patient comfort.