HP2-08: hand pump: adopts 08-2 socket. Absorb oil from port ① and drain oil from port ②. The displacement is 8.8 CC.
HP3-08: hand pump: adopts 08-2 socket. Absorb oil from port ② and drain oil from port ①. The displacement is 6.0 CC.
HP -10: hand pump: adopts 10-2 socket. Absorb oil from port ② and drain oil from port ①. The displacement is 10 CC.