No need to buy extra flat tanks, you can use the gas stove adapter to refill your gas tank from cylinder, saving a lot of time. No air leakage, safe to use. and portable, this rubber pipe is ideal for most kinds of outdoor events. This product has good flexibility, and easy for folding up and carrying. This product is perfectly suitable for camping, hiking, backpacking, and more. Item Name: Refill Adapter Features: Leakproof, Heat-, Reusable, Safe<br><br>Note: Installation guide not included, we strongly recommend you professional installation. Please check as much as possible to make sure the item is what you need. Tips:The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use Color:As Shown Material:Rubber+Metal<br><br>Package Contents: 1 * Valve Braided Hose<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.