ACMA680-24CN-PB Features: -For use with the ACMA680 Typhoon® Blow Gun. -Meets or exceeds OSHA regulations. -1/2-27 UNS thread. -High flow tip means maximum power. Product Type: -Extension. Gun Exntension Length: -12 - 24". Dimensions: Overall Height - Top to Bottom: -0.5 Inches. Overall Width - Side to Side: -0.5 Inches. Overall Depth - Front to Back: -25 Inches. Overall Product Weight: -0.3 Pounds.