Stens 170-068 Tube Replaces Carlisle: 320420 Lesco: 003126 Stem angle type: straight/tr13 tube size: 4.80-4.00-8 (4.00-8) Each tube is individually pre-aired and inspected utilizing advanced technology to ensure conformance to Japanese industrial standards specifications Advanced extrusion technology ensures consistency and eliminates thin walling problems common with other tubes