Check the listing for details. HPA Burst Disk 7.5k - 2 pack (Compressed Air Paintball ). Condition: New. Listed at 9.39 USD. Captain O-Ring HPA / CO2 Burst Disk 7.5k - 2 pack (Compressed Air Paintball) [Bonus CO Microfiber Cloth] Product Features: 7.5k burst disk (2 burst disks included) For use with 4500psi tank regulators 3/8-24 threads that fit standard paintball tanks Includes a bonus Captain O-Ring Microfiber Cloth! Manufactured and warrantied by Captain O-Ring LLC Captain O-Ring has been offering high quality paintball maintenance parts for nearly a decade. Our burst disks are no exception. Constructed of high quality materials and tested to ensure durability and dependability. Includes two burst disks as well as a Captain O-Ring mask lens cleaning microfiber cloth. What to expect: This item includes two (2) burst disks and one (1) Captain O-Ring Lens Cloth in a resealable zip-top poly bag with "Captain O-Ring" branded packaging. Manufactured and warrantied against defect for one year by Captain O-Ring LLC. "Captain O-Ring" is a registered trademark of Captain O-Ring LLC.