This is a Specially Design Inline Air Dryer for typical or specific ozone machine. 

You are buying from an Original Designer to produce this machine. That means you will find solution and have technical support as well as answer your questions right away if any problem happen.

This air dryer is filled with moisture absorption Silica Desiccant to remove the moisture of intake air. It contains 800mL capacity, ( = 4 x of 200mL ) to provide the best absorption and longer servicing life. 

Once, the silica is changed color due to high moisture content. It can be pour out and dry in microwave for 10 minutes to retrieve it performance.

The convenient design of container that allow you to un-screw both end of the container to make changing or pour out the silica ( beads )

Both end with quick connector for flexible tube connection. Good for 6-7mm ID of flexible tube.

Detail Specification :

1) Size : OD 2-3/4" x 8-1/2" long
2) weight : 1.6 lb
3) Capacity : 800mL
4) Container : Plastic 
5) Tube connection : For 6-7mm ID ( 1/4" ID ) of plastic tube.