BEVERAGE & FOOD GRADE | Perfect food and beverage grade co2 for all 16 gram threaded kitchen devices. Standard 3/8" thread size. COMPATIBLE FRIENDLY | Threaded CO2 cartridges fit Fits most inflators. Threaded cartridges are useful for multiple applications and devices. The 3/8" STANDARD THREAD SIZE makes it fit with most applicators. OUTDOOR USE READY | These 16 gram CO2 cartridges work great for mountain bike tire and road bike portable inflators. CONVENIENT 5 PACK | 5 pack of 16 gram cartridges ensures you’re prepared for your next flat, and the one after that. Keg Smiths food and beverage grade 16 gram co2 cartridges are perfect for threaded device applications. The CO2 cartridges are 100% food and beverage safe. COMPATIBLE FRIENDLY | Threaded CO2 cartridges fit Fits most inflators. Threaded cartridges are useful for multiple applications and devices. The 3/8" STANDARD THREAD SIZE makes it fit with most applicators. OUTDOOR USE READY | Our16 gram CO2 cartridges work great for mountain bike tires and road bike portable inflators. Our beverage and good safe cartridges have been leading the way for quality, convenience, and trust. Please contact us with any questions.