The 24K944 Santoprene Check Balls Kit from Graco that include:

com/pdf/Mi-T-M_All_Purpose_Cleaner_SDS_4018

Three large pneumatic casters make the cleaning job easier with flu range motion

You won't need to stop working to wait for new parts to be shipped or deal with extensive downtime while you try to find a replacement—everything you need is already in the kit

9 Horsepower/Motor 8

Mi-T-M All Purpose Cleaner 1-gallon 2700-psi The 24K944 Santoprene Check BallsAll pressure washer detergents are hard water stable to prevent spotting. Environmentally friendly, they will not harm plants and are biodegradable. All Purpose CleanerAll Purpose Cleaner is the most versatile and efficient all around cleaner. Use on vehicles, glass, stainless steel, aluminum, painted surfaces and lawn equipment. Ingredient CAS# Function Water 7732 18 5 Solvent Butoxyethanol 111 76 2 Cleaning Agent C9 11 Alcohols Ethoxylated 4 6EO