THE BOSS™ Foam Cannon metering tips are matched to the type of pressure washer you have so the foam will fly non-stop.
 
For Use with BOSS Foam Cannon (Pink tips can be used in the Griot's Garage Foaming Sprayer)
 
Pink tips are for gas-powered pressure washers (2,200 psi & up)
Purple tips are for electric pressure washers (1,100 to 2,200 psi)
Aqua tips generate maximum foam in all pressure washers
Pink tips can be used in the Foaming Sprayer
Replacement for lost or worn tips