Curated Picks
Water Filter Systems
Compare Amazon (New) vs eBay (Refurb/Used) using evergreen brand/model searches that stay current as listings refresh.
Recommended searches
These searches focus on widely known water filter families and install types (under-sink, RO, countertop, pitcher, whole-house) plus replacement cartridges.
Brita / PUR pitchers (simple daily upgrade)
Mainstream pitcher category for taste improvement and convenience.
- Easy entry option
- Cheap filters
- Good for renters
Berkey / gravity-style countertop systems
Countertop gravity systems—popular for off-grid-ish setups.
- No plumbing changes
- Countertop-friendly
- Check filter availability
Under-sink filtration systems (Aquasana/APEC style)
The ‘best everyday kitchen’ upgrade if you can install it.
- Better flow than pitchers
- Great daily use
- Check install space
Reverse osmosis (RO) systems (APEC/iSpring style)
RO is the ‘deep filtration’ category—more install, more payoff.
- Very thorough filtration
- More maintenance
- Check tank size/space
Whole-house filters (sediment + carbon keywords)
Evergreen search bucket for whole-house systems.
- Protects plumbing/appliances
- Good for taste/odor
- Often needs a plumber
Replacement cartridges + filter kits
The ongoing cost—search keeps it current by brand.
- Plan the recurring cost
- Buy genuine when needed
- Keep a spare set