Adapter types

А

Dead-end cartridge, 44.5 mm adapter, disc end cap (Double 222 O-ring with flat end) 27*, 3**, 0***

А₁ 

Dead-end cartridge, 44.5 mm adapter, fin end (Double 222 O-ring fin end) 26*, 5***

А₄ 

Dead-end cartridge, elongated 44.5 mm adapter, triple bayonet base at the bottom, fin end at the top.  28*

D

Dead-end cartridge, 56 mm adapter, disc end cap  (Double 226 O-ring bayonet lock, without fin) 2**

D₁

Dead-end cartridge, 56 mm adapter, fin end cap (Doudle 226 O-ring bayonet lock and fin end)  25*. 7**, 7***

V(Sl) 

In-line cartridge, no adapter, O-rings for Slime line filter holders

V

In-line cartridge, no adapter.  21*

*Sartorius, **Pall, ***Millipore