Powered by HONDA 6hp, 8hp gasoline engine which generate 3L, 4L output. Proven durable Piston Pump with Long-life V-packings,an DP-3400L Line striping machine with piston pump (6HP 3L)DP-3900L Line striping machine with Piston Pump (8HP 4L )Powered by HONDA 6hp, 8hp gasoline engine which generate 3L, 4L output.Proven durable Piston Pump with Long-life V-packings,and stainless piston rod.Easy ...