Monoblock, GMP 200/055 - GMVP 200/065 - GMVP 200/085
One or Two Stage, GVP 300/120 - GVP 200/170
Two stage, GMP 250/160 - GMP 250/120 - GMP 250/240
Two Stage, GMP 230/120 - GMP 230/160 - GMP 230/200