It is developed by our company independently to test the micro-filtration membrane,for instance, 0.22?m,0.45?m,0.8?m hydrophilic and oily microporous membrane filter . It is widely applied by organizations producing and consuming membranes, and applied to test and control the membrane quality. FEATURES: Working principle: bubble point test method Measuring range: bubble point pressure measuring range :0-0 .6 MPa Minimum reading: 0.02MPa Operating pressure: <=0.6MPa Weight: 6.5kg Dimensions: (L*W*H)38cm*25cm *14cm