Graco AA Plus 238-402 Instructions Manual page 20

Spray Tip Selection Charts
NOTE: Part No. 238–755 Fluid Needle and 224–855 Diffuser-
seat must be used with GG4 tips larger than 0.025 in. (0.635
mm).
Standard Spray Tips, for use with Air Cap 238–628
Orifice
Size Size
inches inches
(mm)
20 308–640