0270460 Block Head Type_Airless Reversible Spray Tips and Tip Bases This piston assembly ***WILL NOT

This piston assembly ***WILL NOT WORK*** in machines that came with the T-shaped piston

Meaning the Old Style-Non Pusher sprayers will accept the New/Pusher Inlets

Additional disc/pads available at this link: 0513041 Disc

If you have a tip base that could be 15 years or older

The Maxum II is a updated version of the NBC gun

0270460 Block Head Type_Airless Reversible Spray Tips and Tip Bases This piston assembly ***WILL NOTFits many pumps, except for the Wave series. Check your manual or email us to confirm. This part is listed as " 0270200 Paint Pump with Valve " in many manuals. Which is this 0270460 Block Head with the prime spray valve installed . It is cheaper to order the prime spray valve separately, since the 0270200 cost $105. 80. This head does not fit the 425 model. Please see this part for the 425.