Check the listing for details. JT Pre-Filled 88g CO2 Cartridge - 4-Pack. Condition: New. Listed at 39.99 USD. JT Pre-Filled 88g CO2 Cartridge - 4-Pack A 4-pack of pre-filled JT 88 gram CO2 cartridges. Each disposable cartridge will provide approximately 140-150 shots when used with a paintball gun. An adapter is required but is not included. It is recommended that cartridges be used until empty once the seal has been broken. Cartridges cannot be refilled. Refund & Return Policy Original sales receipt or invoice must accompany any and all returns.We accept returns for exchange or refund 30 calendar days after delivery of the product. At our sole discretion after 30 calendar days, we will offer an exchange or store credit only. Items must be in "new, unaltered and unused condition", as per the following criteria:The product shows no signs of wear or damage in any way.The product is returned within 30 calendar days of the delivery date; after 30 days no returns are allowed.The product must not be a special order or a custom order.It is noted that the product cannot be returned OR has a different return policy time period other than the standard 30 calendar day policy (This will be noted in a product's particular item description.).If an item is received damaged or is incorrectly shipped by our store, please contact Customer Support immediately. Items that are defective and shipped from us or items that you did not order but received from us will qualify for store credit or a cash refund.Refunds are contingent upon inspection of the product(s) once we receive it.There is a 15% restocking fee for returned items that are not being exchanged and are not damaged. Again, you MUST contact us within 30 days if you intend to return ANY item back to our store. Items returned to us AFTER 30 days and WITHOUT contacting us, will NOT be refunded.Customer is responsible for all shipping costs if seller is not at fault.