1.VQ series single pump:

20VQ(5,8,9,11,12,14);    25VQ(12,14,17,19,21)

30VQ(24,28)   35VQ(25,30,35,38)  45VQ(42,47,50,57,60) 

   2.VQ series double pump:

2520VQ(12,14,17,19,21/5,8,9,11,12,14)        

3520VQ(21,25,30,35,38/ 5,8,9,11,12,14)

3525VQ(21,25,30,35,38/12,14,17,19,21) 

4520VQ(42,47,50,57,60/5,8,9,11,12,14)  

4525VQ(42,45,50,57,60/12,14,17,19,21)   

4535VQ(42,47,50,57,60/21,25,30,35,38)

   3.VQseries cartridge kits: 

20VQ(5,8,9,11,12,14);    25VQ(12,14,17,19,21)

30VQ(24,28)  35VQ(21,25,30,35,38)  45VQ(42,47,50,57,60)