Crystal Quest
Crystal Quest Countertop Water Filter
Multi-stage countertop filter that connects to the faucet. Targets a wide contaminant list.
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Our take
Crystal Quest sits between a pitcher and full reverse osmosis. The countertop unit screws onto your existing faucet via a diverter, runs water through 6-7 filtration stages, and holds enough media to handle hundreds of gallons before the cartridges need swapping. Slower flow than tap, faster than a pitcher. Construction is plastic housing with stainless option. Best for renters who cannot install under-sink.
Pros
- No installation, screws onto faucet
- Long filter life vs pitcher
- Available in stainless housing
Cons
- Sits on the counter (visual footprint)
- Diverter valve can leak if over-tightened
- Brand has less third-party visibility than Aquasana or Berkey
Citations
- [1]Multi-stage carbon and KDF media filtration with manufacturer-published contaminant reduction list — Crystal Quest Countertop Filters page