This is a 0.45 kg container of activated alumina for the Edwards FL20K Foreline Inlet Trap. The activated alumina sorbent has the following benefits; Exceptional trapping properties for oil mist (99.7%), A very long life before it is saturated, and Can be rejuvenated by baking the basket containing the sorbent for 2 hours at 250 °C – 300 °C. To maximize sorbent life, install the FL20K near the vacuum system. In common with other types of sorbent, activated alumina absorbs water. This does not affect the oil vapor trapping properties but may tend to prolong the roughing time on successive pump downs. For complete specifications download the instruction manual (see below avaliable downloads).