Description

1) 81-118 Ceramic Housing Pre-filter 
2) 40-451 Filter 1 (Ceramic)
3) 40-452 Filter 2 ( Yellow ) 
4) 40-452 Filter 3 ( Green ) 
5) 40-454 Filter 4 ( red) 
6) 40-455 Filter 5 ( Blue) 
7) 40-456 Filter 6 ( Purple)