Gas Cartridge / Butane-Propane 300 g for Castolin Torch, Valve 7/16'' (1350) #2711

Refill gas cartridge for Castolin portable torches and soldering tools. The 300 g canister contains a calibrated butane–propane blend and is fitted with a 7/16" valve designed for compatible torch connectors. It provides a compact, replaceable fuel source for heating, soldering and brazing tasks where portability and quick cartridge exchange are required.

Advantages

The cartridge offers a stable flame output and consistent fuel flow due to the formulated butane–propane mixture. Its 300 g capacity balances runtime and portability for on-site work. The standard 7/16" valve interface simplifies replacement and ensures compatibility with torches that accept this valve type. As a disposable canister, it eliminates the need for bulk liquid fuel handling and reduces setup time for small installations and repairs.

Suitable for

• Portable torches and handheld soldering tools designed for gas cartridges with a 7/16" valve
• On-site repairs, maintenance and light fabrication work
• Heating, brazing and metal joining where a compact fuel source is needed
• Plumbing and HVAC work requiring controlled flame for soldering joints

Key specifications

• Fuel type: butane–propane blend
• Net fill: 300 g
• Valve connection: 7/16" compatible valve
• Form factor: disposable threaded cartridge for portable torches
• Intended use: heating, soldering, brazing, on-site repair

How to use

Ensure the torch and cartridge connectors are clean and undamaged before installation. Follow the torch manufacturer's instructions for replacing cartridges: turn off the torch, allow it to cool, align the 7/16" valve and securely attach the cartridge until properly seated. Open the torch valve slowly and check for a steady flame; adjust flame settings as required for the task. After use, close the torch valve and detach the cartridge if required by the torch design. Store unused cartridges upright in a cool, well-ventilated area away from heat sources and open flames.

Usage recommendations

Use only in torches and soldering tools that specify compatibility with 7/16" valve cartridges and a butane–propane fuel mix. Do not puncture or incinerate empty canisters. Observe local regulations and safety guidance for storage, transport and disposal of pressurized fuel cartridges.