The 22N HPGP from ECAPS is a Spacecraft Thruster with Thrust 5.5 to 22 N, Thruster Mass 1.1 Kg, Specific Impulse 243 to 255 Sec, Propellant Mass 1.1 Kg, Inlet Pressure 0.55 to 2.4 Mpa. Tags: HPGP Thruster. More details for 22N HPGP can be seen below.