PUR PFM400H vs Aquasana AQ-5300
Side-by-side comparison of features, pricing, ratings, and alternatives.
The PUR PFM400H is a sleek, faucet-mounted water filtration system that reduces lead, chlorine, and other contaminants, delivering fresh-tasting water straight from your tap. Its easy-install design fits most standard kitchen faucets and requires no tools, making it a convenient solution for households seeking healthier drinking water. With a replaceable filter cartridge lasting up to 100 gallons, the PFM400H offers low-maintenance performance and a clear indicator that alerts you when it’s time for a replacement. Its compact profile saves counter space while providing a reliable, cost-effective alternative to bottled water.
The Aquasana AQ‑5300 is a whole‑house water filtration system designed to protect every faucet in your home. It combines a pre‑filter, a carbon filter, and a copper‑zinc oxidation media to reduce chlorine taste, heavy metals, and emerging contaminants while preserving beneficial minerals. Installation is straightforward with standard plumbing connections, and the system provides up to 10,000 gallons of filtered water before the filters need replacement, delivering consistently great‑tasting water for drinking, cooking, and bathing.
- Effective lead and chlorine reduction
- Simple, tool‑free installation
- Filter life indicator for convenience
- Compact footprint saves counter space
- Highly effective at chlorine and heavy‑metal removal
- Long filter lifespan reduces maintenance frequency
- No electricity required, safe during outages
- Improves taste and odor of all household water
- Filter cartridges need periodic replacement
- Limited to standard faucet sizes
- No smart/ app connectivity
- Initial cost higher than basic pitchers
- Initial cost is higher than basic under‑sink filters
- Filter replacements can be pricey
- Requires professional‑grade plumbing tools for installation
More alternatives & similar tools
Alternatives to PUR PFM400H
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Long-lasting filter that reduces lead and chlorine for great-tasting water

Compact under‑sink water filter delivering great‑tasting, contaminant‑free water
Alternatives to Aquasana AQ-5300
View all →Long-lasting filter that reduces lead and chlorine for great-tasting water

Compact under‑sink water filter delivering great‑tasting, contaminant‑free water
The Verdict
AI-generated from listing dataAquasana AQ-5300 provides whole‑house, electricity‑free filtration with a long 10,000‑gallon lifespan, while PUR PFM400H offers low‑cost, faucet‑mounted point‑of‑use filtration for a single tap.
Key differences
- •Scope: AQ-5300 treats all water in the home; PFM400H treats only the faucet it’s mounted on.
- •Capacity: AQ-5300 lasts ~10,000 gal (6‑12 mo); PFM400H lasts 100 gal per cartridge.
- •Installation: AQ-5300 needs pipe fittings and tools; PFM400H snaps onto a standard faucet without tools.
- •Cost: AQ-5300 MSRP $599 with pricey filter replacements; PFM400H MSRP $49.99 with inexpensive cartridges.
- •Warranty: AQ-5300 housing 10‑year, filters 1‑year; PFM400H 1‑year limited.
Pricing & value
PUR costs $49.99 vs Aquasana $599; lower upfront price makes it better value for point‑of‑use needs.
Capacity
Aquasana filters 10,000 gal (≈6‑12 mo); PUR filters only 100 gal per cartridge.
Energy efficiency & running cost
Aquasana operates without electricity and has longer filter life, reducing ongoing replacement frequency.
Size & footprint
PUR is a compact faucet mount (9.5 cm tall); Aquasana is a 15×10×20 in whole‑house unit.
Features
Aquasana removes chlorine, chloramine, lead, mercury, PFOA/PFOS, and balances pH; PUR focuses on lead and chlorine only.
Ease of installation / maintenance
PUR installs tool‑free on standard faucets; Aquasana requires pipe fittings and professional‑grade tools.
Warranty
Aquasana offers a 10‑year housing warranty plus 1‑year filter warranty; PUR provides only a 1‑year limited warranty.
Choose PUR PFM400H if…
Renters or households needing inexpensive, easy‑install point‑of‑use filtration for a single faucet.
Choose Aquasana AQ-5300 if…
Homeowners who want whole‑house, long‑lasting filtration and can handle a larger upfront investment.
Common questions
Can the Aquasana filter be installed on any faucet?
No; it is a whole‑house system that connects to the main water line, not a faucet.
How often must the PUR cartridge be replaced?
Each cartridge filters up to 100 gallons, typically lasting a few weeks depending on usage.
Does either system require electricity?
Aquasana operates without electricity; PUR also requires no power.

