VIAIR Model 10002 is a quarter duty cycle 120 PSI onboard air system and is suitable for many pneumatic needs including smaller inflation tasks, air horns and much more. The 25% duty cycle onboard air system will operate for 10 minutes and will provide 30 minutes of cool down. Please Note: Use thread sealant for proper installation. Telfon tape is not recommended. Properly sealed, recommended torque for 1/8" is 10-11 ft. lbs. Recommended torque for 1/4" and 3/8" is 16-18 ft. lbs.