Specification Brand : Jason Industrial BulletPoint1 : Conforms to RMA Engineering Standard BulletPoint2 : Comparable to Gates, Browning, Goodyear, Dayco, Bando, PIX, Bestorq, Grainger BulletPoint3 : Timing belts are measured by Length, Tooth Pitch, then width. The first number is the length, the letter (and sometimes number) refer to the tooth and the final number is the width. Some are measured in mm and others in inches. If you are not matching a belt number, you should contact us for clarification prior to an order. CompatibleDevices : Vacuum Cleaner ExternallyAssignedProductIdentifier1 : 0650003358976 ExternallyAssignedProductIdentifier2 : 650003358976 ItemName : Jason Industrial 270L100 3/8-inch (L) Pitch Standard Timing Belt ItemPackageQuantity : 1 ItemTypeKeyword : industrial-timing-belts Manufacturer : JASON INDUSTRIAL Material : Rubber NumberOfItems : 1 PartNumber : 270L100 ProductDescription : Jason 270L-100 Standard Timing Belt, Belt Length: 27.0 in, Pitch Code: L, Width: 1.00 in, No. of Teeth: 33, Approx. Weight: 0.13 lbs ProductSiteLaunchDate : 2012-11-19T21:56:03.178Z