A five-finish tub filter that an independent lab measured at zero chlorine reduction at its own rated flow.
$65
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Usability
Usability
This is the only product in the Crystal Quest range with independent bench data against it, and the data is bad. A data-driven bathtub filter comparison measured no chlorine reduction at all at 3.79 GPM, within the 4 to 5 GPM the product is rated for, and only about 85 percent reduction once flow was throttled to 0.97 GPM, at which point a tub takes roughly 50 minutes to fill. Chloroform in the same test rose 4.5 percent after filtration rather than falling. The hardware itself is sound enough for the money, with a BPA-free ABS housing, five finishes and a 12 to 18 month cartridge, and Crystal Quest never claims a certified reduction figure. What the buyer is trading away is any evidence that the thing works at a usable fill rate, which for a bath filter is the whole proposition.
- Five finishes on one cartridge at the same price point
- Cartridge rated 12 to 18 months or 2,000 to 2,500 gallons
- BPA-free ABS housing, no plumbing or tools needed
- Three distinct media beds rather than a single carbon pad
- Assembled in the USA
- Independent lab testing measured no chlorine reduction at 3.79 GPM
- Chloroform measured 4.5 percent higher after filtration in the same test
- No NSF, IAPMO or WQA listing under the Crystal Quest name
- No published reduction percentage for any contaminant named on the page
- One-year limited warranty and filter media cannot be returned
The Bath Ball Filter hangs under a tub spout and passes fill water through carbon GAC spheres, Eagle Redox Alloy spheres and chlorine-reduction ceramic spheres. It is sold in five finishes on one cartridge, rated 4 to 5 GPM and 2,000 to 2,500 gallons. Crystal Quest publishes no reduction percentage for any contaminant it names.
Additional information
Specification: Crystal Quest Bath Ball Filter
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Questions answered from our data

How much does a shower filter cost?The 15 shower and faucet filters we list run from $30 to $170, with a median of $80.
How long do shower filters last?Of the 15 shower and faucet filters we list, 14 state a filter life; the most common is 6-12 months (9).
Do water filters remove chlorine?217 of the 296 systems we list claim to reduce chlorine.
Do water filters remove iron?46 of the 296 systems we list claim to reduce iron.




