Tank vent dryers and vent dryers are filled with Envirogel desiccant, which changes colour from orange to green as it becomes saturated with water vapour.
Brownell units are designed to enable the easy and quick replacement of the desiccant charge. When the colour change from orange to green has reached the level indicated on the label, desiccant charge should be replaced.
Desiccant type: Envirogel – Indicating Silica Gel.
3 to 50 Kg refills are supplied in re-sealable containers.
All refills are packaged for a shelf life of 12 months when stored in temperate conditions.
We also offer unit specific refill packs, please contact us for more information