A trombone tip offers fast switching from your soap tip to your rinse tip. This new favorite in the fleet washing industry is practical, economical, and is installed quickly on any threaded 1/4" male NPT lance. For setup, tighten the trombone tip on the end of your lance with the trombone rod pointed towards your trigger gun. Tighten a 1/4' threaded soap tip in line with the trombone rod and tighten a 1/4' threaded rinse tip in line with your lance. Pull the trombone rod to switch to your soap tip and push it in to rinse. Do not pull valve stem while under pressure as this may cause injury. Soap and rinse tip sold separately.