Specification Brand : Liberty Supply BulletPoint1 : Includes informative quick tapping instructions, copyright Liberty Supply. BulletPoint2 : Utilizes 5/16" tap hole and fits 3/16" tubing on the barbed end. BulletPoint3 : Check Valve taps keep bacteria out of your tap hole BulletPoint4 : Less Bacterial means more sap and an extended season Color : Clear Department : unisex-adult ExternallyAssignedProductIdentifier1 : 9421007123157 ExternallyAssignedProductIdentifier2 : 00047440802016 ExternallyAssignedProductIdentifier3 : 09421007123157 IncludedComponents : TRUDESIGN TD90845 Check Valve ItemName : "CV" Check Valve Maple Taps, Sap Spiles - for 3/16" tubing (25) ItemPackageDimensions_Height : 12.8 centimeters ItemPackageDimensions_Length : 2.2 centimeters ItemPackageDimensions_Width : 11.2 centimeters ItemPackageQuantity : 25 ItemTypeKeyword : industrial-check-valves Manufacturer : Liberty Supply Material : plastic ModelName : TRUDESIGN TD90845 Check Valve ModelNumber : TD90845 NumberOfItems : 1 PackageLevel : unit PartNumber : CV316 ProductDescription : Includes informative quick tapping instructions, copyright Liberty Supply. Drill a 5/16" hole into the tree to accept these taps. The barbed "output" on this tap is sized to accept 3/16" maple tubing. These check valve taps are the latest in tap technology. When it gets cold at night your tree creates vacuum and sucks bacteria back in through the tap hole. These taps prevent that from happening. By not allowing any contamination back into the tap hole, the hole does not heal over as fast and it allows you to get more sap over a longer period of time. These are scientifically proven to improve sap yield. ProductSiteLaunchDate : 2017-12-17T08:00:00.000Z Size : No Size SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1 UnspscCode : 40141600