The SR 221 pre-filter is a non-classified filter media designed to capture coarse and larger particles while extending the life of the particulate filter SR 510 and SR 710. The pre-filter is placed in the prefilter holder which attaches to the particulate filter.
|Model description||SR 221 Prefilter|
|Shelf life (years)||10|
|Country of manufacture||Sweden|
|Height US (inch)||0,039|
|Diameter US (inch)||4,01|
|Operating temp.||14 to 131 °F (-10 to +55 °C), < 90 % RH|
|Storage temp.||4 to 104 °F (-20 to +40 °C), < 90 % RH|