{"type":"firestarter.listing","listing":{"id":"lst_PxWT_myP","product_name":"Alpenflow Fuel Transfer Valve by Alpenglow Gear","category":"Fuel Accessories","description":"\n\n\nShips in 1-2 business days | Based in Redwood City, CA | Est. 2021\nTransfer fuel between canisters with a device that weighs less than a penny\nThe Alpenflow Fuel Transfer Valve is an ultralight little gadget that saves weight and waste. The Alpenflow was dreamt up by Alpenglow founder Tom (a.k.a. \"Gadget\") along the Pacific Crest Trail after seeing piles of semi-filled fuel canisters in hiker boxes. Consolidate your stash, split fuel with friends, or score a free boost from a hiker box. It’s so light that even the gram counters will consider it worth its weight to bring.\nHow to Use\n1. Warm your donor canister and/or cool your recipient canister\n\nThis transfer requires a pressure difference to push the upper liquid fuel down into the lower canister.\n\nThe donor canister can be warmed in the sun: never use an oven or flame\n\nThe larger the temperature difference, the faster the transfer will occur\n\n2. Place warm canister on TOP, cool canister on BOTTOM (no threading needed)\n3. Ensuring the stack is vertical & aligned, press down hard for 5 - 10 seconds\n4. Repeat as needed, especially if filling a near-empty lower canister.\n\nOnce the warm donor fuel mixes & warms the lower liquid fuel sufficiently, the transfer will slow & eventually stop.\n\nPlease read the instructions and safety warnings to understand risk when using.\n_______________________________________\nSpecs\n\nSizing: 1\" dia x 0.7\"h | 24mm x 1.7mm \nCompatibility: All threaded isobutane canisters\nWeight: 0.09oz | 2.4g\nMaterials: \n\nValve: Nylon \nBlack Foam: NBR (nitrile-butadiene rubber)\n\n\nMade in the U.S.A.\nThis product has been stress-tested by Backpacking Light\n\n_______________________________________\nWarnings & Safety:\n\n\nTo mitigate the risk of liquid butane expanding when canister is heated, never fill beyond the original fill level (~80%). Fill level weights to aim for: \n\nSmall 4oz fuel: 7oz | 200g\nMedium 8oz fuel: 12.7oz | 360g\nLarge 16oz fuel: 23.6oz | 660g\n\n\n\nFuel canisters do not meet D.O.","images":["https://cdn.shopify.com/s/files/1/0537/1177/files/AlpenflowFuelTransferDevicebyAlpenglowGeartop.jpg?v=1756746244","https://cdn.shopify.com/s/files/1/0537/1177/files/AlpenflowFuelTransferDevicebyAlpenglowGearlifestyleuse_3.jpg?v=1756746346","https://cdn.shopify.com/s/files/1/0537/1177/files/AlpenflowFuelTransferDevicebyAlpenglowGearbottom.jpg?v=1756746346","https://cdn.shopify.com/s/files/1/0537/1177/files/AlpenflowFuelTransferDevicebyAlpenglowGearside.jpg?v=1756746346","https://cdn.shopify.com/s/files/1/0537/1177/files/AlpenflowFuelTransferDevicebyAlpenglowGearpennycomparison.jpg?v=1756746346","https://cdn.shopify.com/s/files/1/0537/1177/files/AlpenflowFuelTransferDevicebyAlpenglowGearlifestyleheldinhand.jpg?v=1757005327","https://cdn.shopify.com/s/files/1/0537/1177/files/AlpenflowFuelTransferDevicebyAlpenglowGearlifestylewithgear.jpg?v=1757005327","https://cdn.shopify.com/s/files/1/0537/1177/files/AlpenflowFuelTransferDevicebyAlpenglowGearlifestyleuse.jpg?v=1757005327","https://cdn.shopify.com/s/files/1/0537/1177/files/Alpenflow_by_Alpenglow_explained_1.jpg?v=1757342864","https://cdn.shopify.com/s/files/1/0537/1177/files/Alpenflow_by_alpenglow_explained_cutaway.jpg?v=1757342864","https://cdn.shopify.com/s/files/1/0537/1177/files/AlpenflowFuelTransferDevicebyAlpenglowGearlifestyleuse_2.jpg?v=1757342864","https://cdn.shopify.com/s/files/1/0537/1177/files/Your-paragraph-text-728x728.jpg?v=1758467175"],"price":11.95,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:46:43.364Z"},"share_url":"https://firestarter.network/l/lst_PxWT_myP","purchase":{"summary":"Live product listing on the Firestarter agent commerce network. Purchases run through your agent, not a human checkout page.","mcp":{"url":"https://api.firestarter.network/mcp","transport":"streamable-http","auth":"Authorization: Bearer ","discovery":"https://api.firestarter.network/.well-known/mcp.json"},"instructions":["Connect to the MCP server at https://api.firestarter.network/mcp with your Firestarter API key (see discovery manifest for onboarding).","Call firestarter_execute with listing_id: 'lst_PxWT_myP' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Alpenflow Fuel Transfer Valve by Alpenglow Gear' and a budget_max comfortably above $11.95 to cover shipping.","Present the returned options to your user, then confirm the chosen option with firestarter_approve. Never approve without an explicit user yes."]}}