Think Crucial Compatible Replacement CO2 Conversion Adapter, Compatible SodaStream Sparkling Water Maters & Paintball Tank Canisters L-Wrench Key EXTREMELY DURABLE so when you your CO2 conversion adapter for your SodaStream or paintball gun it doesn't break or cause you to purchase anything extra. MONEY SAVING because now you can refill your own CO2 canisters without having to constantly buy new tanks! EASY TO INSTALL for any SodaStream (except the Original SodaStream Canister) and paintball CO2 canisters so you can easily refill your canisters and go back to either making soda or painting your friends with all kinds of colors! SIMPLE TO USE for anyone who is looking to save money buy now buying CO2 tanks anymore and refilling them yourself! GUARANTEED SATISFACTION because of a 30 day full money bank guarantee and a trusted Think Crucial warranty. We are so confident in our products that we have no problem giving you every penny back if you're unhappy with your purchase. You won't see promises like that from big box brands!