MADE FOR HIT-AIR 48CC VESTS: Designed for use with Hit-Air vests requiring 48cc cartridges including the SV2 model, LV model, and newest SV3 model in all sizes. Also known as the Original Super Light Weight, these models update every few years. Please contact if you have a previous system for assistance. EASY INSTALLATION: Each 48cc cartridge installs quickly and securely—designed to replace used canisters after activation. RELIABLE SAFETY: Delivers rapid inflation in case of impact to protect motorcyclists and equestrians with a proven airbag deployment system. READY WHEN YOU NEED IT: Keep your vest functioning at its best—these cartridges are tested for fast inflation so you’re covered when it matters most. AUTHENTIC & TRUSTED: Manufactured by Hit-Air for precise fit and function—don’t risk your safety with off-brand replacements. Stay protected and prepared with this 3-pack of authentic Hit-Air 48cc CO₂ replacement cartridges, designed for use with select Hit-Air motorcycle and equestrian airbag vests. These cartridges are compatible with the SV2, LV, and the latest SV3 vest models in all sizes—also known as the Original Super Light Weight series. If you're unsure about compatibility with older vests, we recommend reaching out before purchase to ensure a proper fit. Each cartridge comes pre-filled and sealed for single use, entirely metal-sealed, delivering fast and reliable inflation in the event of an impact. Once activated, the vest inflates immediately, helping reduce injury risk during a fall or crash. Installation is quick and straightforward—simply screw the cartridge into the inflator by hand until secure. Most vests come with a setting screw and Allen wrench; if replacements are needed, they’re available for purchase separately. The installation toolkit is reusable, making it easy to replace a used cartridge when needed. A puncture mark near the threads indicates when a cartridge has been used and needs replacing. These 48cc cartridges are safe to handle and include clear instructions for proper installation and use. They are designed to perform reliably in all weather conditions, including cold temperatures, though extreme climates may slightly affect inflation time. For best performance, always ensure the CO₂ cartridge is securely connected and inspect the area regularly to confirm the spacing is correct. Each cartridge weighs approximately 5.07 oz and should be stored in a cool, dry location—your motorcycle vest pocket is a convenient option. While the cartridges do not expire, it is recommended to replace them after five years or sooner if you notice any signs of rust, corrosion, or discoloration. Please note that a storage case is not included. These cartridges are not refillable. They may be recyclable depending on your local collection center’s guidelines—please check with your facility. For your safety and peace of mind, always use genuine Hit-Air cartridges—off-brand alternatives may not deploy properly or fit your vest securely.