SLF Water Filtration Comparison · 2026
APEC RO-PH90
Recommended for shoppers who prefer proven traditional RO hardware but want higher 90 GPD output and alkaline remineralization.
SimPure T1-400ALK
Strong value for shoppers prioritizing fast tankless RO output and alkaline remineralization.
SimPure T1-400ALK
Choose it for 400 GPD tankless RO plus remineralization; look elsewhere if exact-system certification is your top priority.
RO Performance & Ownership
Compare RO output, filtration stages, remineralization, contaminant evidence, certifications and ownership cost.
Which Is Right for You?
APEC RO-PH90
Best for: Homeowners wanting broad reverse-osmosis contaminant reduction plus minerals added back for taste and pH, without moving to an electronic tankless system.
Consider if: Want Remineralization
SimPure T1-400ALK
Best for: Households wanting a compact, higher-output tankless RO system that adds minerals back after RO filtration.
Our Recommendation
APEC RO-PH90
A strong premium traditional RO choice for households that want alkaline remineralized water and established certification without electronics or a tankless design.
SimPure T1-400ALK
A feature-rich alkaline tankless RO option with attractive output and ownership economics, with certification evidence that should be described conservatively.
The Short Answer
Choose RO-PH90 for 90 GPD plus alkaline remineralization and WQA Gold Seal certification.
Choose it for 400 GPD tankless RO plus remineralization; look elsewhere if exact-system certification is your top priority.
Water Filter Comparison FAQs
Answers are generated from the current SLF product records for these two systems.
Which is better, APEC RO-PH90 or SimPure T1-400ALK?
SimPure T1-400ALK is the overall pick for this specific matchup. Choose it for 400 GPD tankless RO plus remineralization; look elsewhere if exact-system certification is your top priority.
Which system has the higher daily filtration capacity?
SimPure T1-400ALK has the higher rated output: 400 GPD versus 90 GPD.
Which system offers remineralization?
Both systems are listed as yes for remineralization in the current SLF records.
Which system has the lower MSRP?
SimPure T1-400ALK has the lower MSRP in the current SLF records at $349.99, compared with $409.99 for the other system.
Do both systems require a plumbing connection?
APEC RO-PH90: Yes. SimPure T1-400ALK: Yes.
Which system is more renter friendly?
APEC RO-PH90: No. SimPure T1-400ALK: No. Check lease and plumbing-modification rules before installing an under-sink system.
What certifications are listed for these systems?
APEC RO-PH90: APEC RO-PH90 is WQA Gold Seal certified to NSF/ANSI 58. The certified reduction scope includes lead, fluoride and other specified contaminants. Broader APEC claims covering 1,000+ contaminants should be treated separately as manufacturer claims unless included in the applicable certification or performance data. SimPure T1-400ALK: SimPure states the T1-400ALK is SGS tested against / meets NSF/ANSI 58. Record as third-party tested, not NSF-certified, unless an accredited certification directory confirms exact-system certification.
How do estimated annual filter costs compare?
APEC RO-PH90: $74.99. SimPure T1-400ALK: $109.99. Actual replacement timing and prices can vary.