What is the proper order for filters?

The proper order for filters is to put the Sediment filter first. This protects the more expensive filters downstream from sediment. Next would go the Carbon or Combination filter for taste and odor, followed by any specialty cartridges for iron, arsenic, nitrites, etc. If you are not in an area where these contaminants exist, leave the third canister empty for better flow.

Filter order for popular systems....

     Essential System - RV-SED1, F1PB

1. 2.

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     Essential System Plus Iron - RV-SED1, F1, Metal Trap

1. 2. 

3.

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     Essential System + Anti Scale- RV-SED1, F1PB, RV-PH

1. 2. 

3.

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     South of the Border- PR-1 Jumbo, Doulton RIO, KDF/GAC BB

1. 2. 

3.

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      Jumbo Essential System - PR-1 Jumbo, F1BB

1. 2.

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     Jumbo Essential Plus Iron-PR-1 Jumbo, F1BB, Metal Trap

1. 2. 

3.