Home / Avionics / Instruments & Gauges / ASI & VSI Gauges, Slip Indiator / Protector, Pitot Tube, 1/4 Inch Protector, Pitot Tube, 1/4 Inch$14.85 Protector, Pitot Tube, 1/4 Inch quantity Add to cart SKU: INAS718 Category: ASI & VSI Gauges, Slip Indiator Description Description Fits over PITOT Tube. Stays in closed position until forward speed opens cover. Simple no hasel way to keep bugs out of the pitot tube. Aluminum construction. Fits over 1/4″ O.D. tube and is held in place with compression fitting.