SLF Water Filtration Comparison · 2026
BOROUX Legacy
Recommended for households wanting premium, installation-free gravity filtration.
Glacier Fresh PC04
Recommended for renters and households wanting better-than-basic countertop filtration without installing an under-sink or RO system. The PC04 makes the most sense when lead, PFAS, chlorine and taste/odor are the primary concerns and ease of installation matters more than maximum contaminant removal.
BOROUX Legacy
Choose it for high-capacity gravity filtration without plumbing; add Proactive Filters if fluoride reduction is a priority.
Water Filtration Performance & Ownership
A fast side-by-side look at filtration, installation, capacity, certifications and ownership cost.
Which Is Right for You?
BOROUX Legacy
Best for: Families, Renters, and households wanting high-capacity gravity filtration without installation.
Consider if: Limited Counter Space, Avoid Plumbing, Renting
Glacier Fresh PC04
Best for: Best for renters, apartment dwellers and smaller households that want a substantial countertop filtration system without modifying plumbing. Its gravity-fed design is especially appealing for households concerned about lead, PFAS, Chlorine, taste and odor while still wanting a simple, electricity-free system.
Consider if: Avoid Plumbing, Renting, Budget Under $200
Our Recommendation
BOROUX Legacy
Strong premium choice for families and renters who prefer gravity filtration over plumbed or powered systems.
Glacier Fresh PC04
A particularly good fit for renters. The PC04 earns its place in the SLF database by combining no-installation convenience with better contaminant documentation than many gravity-fed systems. We would choose it primarily for lead, PFAS, chlorine and taste-and-odor concerns rather than for shoppers seeking the broadest possible contaminant removal.
The Short Answer
Choose it for high-capacity gravity filtration without plumbing; add Proactive Filters if fluoride reduction is a priority.
Choose the GLACIER FRESH PC04 if: you want a no-installation stainless-steel countertop filter with third-party-tested lead and PFAS reduction. Skip it if: you want RO-level filtration, verified fluoride reduction, high output or the lowest long-term filter cost.
Water Filter Comparison FAQs
Answers are generated from the current SLF product records for these two systems.
Which is better, BOROUX Legacy or Glacier Fresh PC04?
BOROUX Legacy is the overall pick for this specific matchup. Choose it for high-capacity gravity filtration without plumbing; add Proactive Filters if fluoride reduction is a priority.
Which system offers remineralization?
Both systems are listed as no for remineralization in the current SLF records.
Which system has the lower MSRP?
BOROUX Legacy has the lower MSRP in the current SLF records at $399.00, compared with $399.99 for the other system.
Do both systems require a plumbing connection?
BOROUX Legacy: No. Glacier Fresh PC04: No.
Which system is more renter friendly?
BOROUX Legacy: Yes. Glacier Fresh PC04: Yes. Check lease and plumbing-modification rules before installing an under-sink system.
What certifications are listed for these systems?
BOROUX Legacy: WQA certified to NSF/ANSI 42, NSF/ANSI/CAN 401, and NSF/ANSI/CAN 372. Glacier Fresh PC04: Manufacturer states PC04 meets NSF 42, 53, 401 and 372-related standards and cites SGS/CSA testing. Exact PC04 model was not located in the current NSF official product listing, so NSF certification is recorded as Unknown pending exact-model certification verification. Product-specific SGS testing supports contaminant-reduction claims including lead, chlorine and PFOS/PFOA.
How do estimated annual filter costs compare?
BOROUX Legacy: $139.00. Glacier Fresh PC04: $219.96. Actual replacement timing and prices can vary.