Replacement set of Cartridges for a 20" x 4.5" Jumbo 3-Stage Purifier.  Sediment, GAC (Granultated activated carbon) and a Coconut carbon 5 micron carbon block. Used for Chlorine and Odour Removal. Good Quality filters at a very reasonable price. 
 
 
 
 
 
 
 
 
 
 
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