Skip to content
What Filter Removes

A. O. Smith Direct Flow RO AOS-DFRO800 vs APEC ROTL-A1000

Only the APEC ROTL-A1000 is certified to reduce PFAS. Verdict: the APEC ROTL-A1000 for broader certified protection (2 vs 1 of the contaminants we track). Replacement filters and water for 2 people cost about $292 a year on the A. O. Smith Direct Flow RO AOS-DFRO800 and $194 on the APEC ROTL-A1000; they cost $575 and $599 to buy.

A. O. Smith Direct Flow RO AOS-DFRO800APEC ROTL-A1000
TypeUnder-sink reverse osmosisUnder-sink reverse osmosis
Price$575$599
Filters + water a year (2 people)$292$194
Filter cost per gallon (rated life)40¢—
Gallons per day8001000
Pure to drain1.78:12:1
Installationdiydiy
PFAS—Certified
Lead—Brand test only
ChlorineBrand test onlyBrand test only
Arsenic—Brand test only
TDSCertifiedCertified
Check price on Amazon: Direct Flow RO AOS-DFRO800 →Check price on Amazon: ROTL-A1000 →