DURR ECOGUN 2100 Aircaps
10-30 Aircap is for Nozzle with less than 30 degree angle so any nozzle that starts with 1,2,3 for example 207.
40-90 Aircap aircap is for Nozzles that have an angle from 40 to 90 degree angle so nozzles starting with 4,5,6,7,8,9 for example 411.
Round Aircap will give you a round fan pattern (circle) round nozzles need to have round aircap.
Tips Sizes Available
107,109,111,113,115,119,121,207,209,211,213,215,217,219,307,309,311,313,315,317,
407,409,411,413,415,417,419.
Round Nozzles (needs round aircap)
R107,R109,R207,R209,R211,213,R215,R307,R309,R311,R313,R315,R317,R407,R409,
R411,R413,R415.