Model HK4 Chrome Quad Air Horn Kit - NOB (New Open Box) New Open Box This is the authentic tone

This is the authentic tone of a classic 40

reimagined for vehicles where space is a premium

The 730 can be upgraded by adding an Ultra BlastMaster™ valve upgrade (P/N 6890) – making it the loudest

there is always a drain port available on the bottom

Bring professional-grade convenience straight to your vehicle with the premium Kleinn INF-1 Tire Inflator Package

Model HK4 Chrome Quad Air Horn Kit - NOB (New Open Box) New Open Box This is the authentic toneModel HK4 Chrome Quad Air Horn Kit New Open Box [PNXXXX NOB] Previously opened boxes that have been reboxed. NOB Stock goods have the same 1 year warranty as all other Kleinn products. ProBlaster HK4 Complete Chrome Compact Quad Air Horn Kit Quad chrome air horn with four tuned trumpets. 13", 11", 8. 5", and 7", also available in black XCR2. 0 Stealth finish (P N HK4 1). More trumpets mean a more full blended tone. The horns are compact enough to fit