m188Description. Haskel Model M-188 0.33HP Air-Driven Liquid Pump. Catalog literature: Liquid Pump Catalog.pdf With a nominal pressure ratio of 188:1, the Haskel model M-188 0.33HP air-drivenWIRE GUIDE M188 DIA 0.105 , 0.155 , 0.205 , 0.255 , 0.305 mm. Siam Sonix Solution Co., Ltd. 14040 Moo 12, King Kaew rd, Bang Phli, Samut Prakan