RedRock 38g CO2 Cartridge, 3/8-24 Threaded 50cc Compressed Gas Cylinder – for Bike Tire Inflators, Inflatable Life Jackets, Airsoft Guns, and Industrial Use

The RedRock 38g CO₂ Cartridge is a high-capacity compressed gas cylinder designed for fast inflation and reliable performance across a range of uses. It features a standard 3/8-24 threaded neck that fits most CO₂ inflator devices and mechanisms – from bike tire inflator heads to inflatable life jacket (PFD) inflators. Each single-use cartridge comes pre-filled with 50cc of pressurized CO₂, providing a quick and portable air source whenever you need it. Whether you’re a cyclist re-inflating a flat bicycle tire on the roadside, a boater replacing the CO₂ cylinder in your personal flotation device, or an airsoft enthusiast powering a CO₂-driven air gun, this 38 gram cartridge delivers dependable inflation power. It’s an ideal universal CO₂ refill for gear that requires a larger cartridge than the standard 12g or 16g size. Manufactured with durable steel and strict quality control, RedRock 38g CO₂ cartridges are built to perform when you need them most. The cylinders are filled with clean, food-grade CO₂ gas, so they won’t introduce dirt or residue into your equipment, preventing clogs in valves or inflators. Each unit is factory-sealed and leak-tested, ensuring the full CO₂ charge is preserved until you puncture it for use. You can safely store these cartridges for long periods in your bike repair kit, emergency roadside bag, or boating gear without worrying about loss of pressure. With its reliable, high-volume gas output and universal compatibility, this 38g threaded CO₂ cartridge is a smart addition to any cyclist’s tool kit, inflatable life vest rearming pack, or airsoft gear bag. Due to the nature of this product (pressurized CO₂ cartridges), returns are not accepted for safety and regulatory reasons. Vest Compatability Blue Soup Inflatable Surf Vest (Up/UN models) Blue Soup “First Responder” Surf Vest (2-pull/4-pull) Patagonia PSI Big-Wave Surf Inflation Vest Quiksilver Highline Pro Airlift Surf Vest Stearns / SOSpenders 38 Gram Inflatable PFD (Pro/Std models) Mustang Survival MIT 150 Convertible A/M Inflatable PFD (MD2020)

• High-Capacity & Standard Thread – Contains 38 grams of CO₂ in a single-use cylinder with a common 3/8-24 threaded neck. Delivers a larger CO₂ charge than standard 16g or 33g cartridges. Compatible with most threaded CO2 tire inflators, inflatable life jacket mechanisms, and other CO₂-powered equipment.
• Fast Bike Tire Inflation On-the-Go – Quickly refill bicycle tires in seconds. A single 38g cartridge can inflate high-volume tires (even fat bike tires) that smaller 16g cartridges can’t fully fill. Works with any standard threaded CO₂ inflator head – perfect for quick roadside flat fixes without a bulky pump.
• Inflatable Life Jacket Compatible – Replacement CO₂ cylinder for automatic or manual inflatable life vests and personal flotation devices (PFDs). The 38g cartridge provides the gas needed to fully inflate compatible life jackets in an emergency. Keep one as a spare rearming kit refill so you’re always prepared on the water.
• Versatile CO₂ Power for Airsoft & More – Powers a variety of CO₂-driven gear. Use 38g cartridges with airsoft or BB guns that accept larger CO₂ sources, and with certain paintball markers or pellet rifles designed for threaded CO₂ cylinders. Also handy for small pneumatic tools or other devices requiring a portable CO₂ supply.
• Reliable & Leak-Proof Design – Made of durable steel and filled with clean, pure CO₂ gas. Each cartridge is factory-sealed to prevent leakage, ensuring a full 50cc charge when punctured. The corrosion-resistant canister stores safely for long periods, so you can keep spares on hand without worry.
• Due to the nature of this product (pressurized CO₂ cartridges), returns are not accepted for safety and regulatory reasons.