33 FT Maple Syrup Tubing, 5/16″ Maple Syrup Vacuum Tubing Line, Food Grade Silicone Maple Sap Tube, Tree Tapping Collection Tube for Maples Syrup Tapping Supplies. 🔹Verdnzia maple syrup tubing is engineered for optimal sap collection during the early spring season(from mid-March to mid-April).