Anest Iwata Supernova WS-400 Next Generation Center cup Spray Gun WS400 with cup. WS-400-1301B-S1 1.3 0.2 370 140 260 365 01 425 gun with 645. Spray distance: At a coating viscosity of 20 seconds/NK-2, the pattern opening ( 1) is 130 mm, and the pattern opening ( 2) is 200 mm.