VEVOR Train Horns Kit, 4 Trumpet Air Horn Kit, 150dB Train Horns for Pickup Trucks, 12V 160 psi Air Compressor 2.6 Gal/10 L Tank with Gauge for Any 12V Vehicle Car Truck Train Van Boat

I bought a switch for the compressor and a momentary switch to blow the horn. Also bought 14 ga wire to run from the battery to the switches, then to the compressor and horn. You need connectors for all the connections. I used a big zip tie to mount the compressor under the hood. I used shrink wrap to cover the connections too. Hope this helps. Horns are plenty loud to make people stop texting while they drive. Enjoy

DEAR FELLOW CUSTOMER. WHAT IS NEDDED IS A DC 12 VOLT POWER SUPPLY , ELECTRIC WIRE TO GO FROM THE POWER SOURSE TO A FUSE , POWER SWITCH & TO THE COMPRESSER. AL SO WIRE FROM THE POWER SOURSE TO A FUSE TO THE HORN BUTTEN TO THE HORN . ENOUGHT AIR HOSE TO GO FROM AIR COMPRESSER TO THE HORN. GOOD LUCK. J.T.

The hole size on the gas cylinder is NPT1/4.

It is recommended to install it in a dry and well-ventilated environment.

The filter cotton can be cleaned by blowing it with air.

1.8CFM.