Water Filters · Head-to-head
PUR DS1811Z (PUR PLUS 30-Cup Dispenser) vs ZeroWater ZD-022-RR (22-Cup Ready-Read Dispenser)
Best High-Capacity Alternative (Dispenser)
PUR DS1811Z (PUR PLUS 30-Cup Dispenser)
7.3/10
$39.99 at Amazon
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Best Large-Capacity Fluoride-Removing Dispenser
ZeroWater ZD-022-RR (22-Cup Ready-Read Dispenser)
6.4/10
$36.99 at Amazon
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The short answer
PUR DS1811Z (PUR PLUS 30-Cup Dispenser) comes out ahead overall with 7.3/10 against 6.4/10 for the ZeroWater ZD-022-RR (22-Cup Ready-Read Dispenser). PUR DS1811Z (PUR PLUS 30-Cup Dispenser) is stronger on pfas reduction evidence, value, flow & daily convenience and health, materials & sustainability. ZeroWater ZD-022-RR (22-Cup Ready-Read Dispenser) is stronger on other contaminant coverage.
- Choose the PUR DS1811Z (PUR PLUS 30-Cup Dispenser) if: Large families who would rather have a 30-cup spigot dispenser than a pitcher but want the same PFAS-certified PPF951K filter.
- Choose the ZeroWater ZD-022-RR (22-Cup Ready-Read Dispenser) if: Big households that want ZeroWater's full demineralization (fluoride, TDS) in a 22-cup spigot dispenser and accept about $0.90 per gallon in filters.
Scores by criterion
| Criterion | PUR DS1811Z (PUR PLUS 30-Cup Dispenser) | ZeroWater ZD-022-RR (22-Cup Ready-Read Dispenser) |
|---|---|---|
| PFAS reduction evidence | 8.3Certified filter; lab results carried over from the 11-cup pitcher, not tested in this unit. | 7.0IAPMO NSF/ANSI 53 PFOA/PFOS claim (Amazon listing); not Total PFAS, and this unit has not been lab-tested. |
| Other contaminant coverage | 7.8Same filter: lead, microplastics and PFAS, but little fluoride reduction. | 8.8The ZeroWater 5-stage filter removes lead, chromium, mercury and fluoride, down to 0 TDS. |
| Value | 7.0$39.99 sold by Amazon, plus about $108 a year in filters. | 4.3$36.99 sold by Amazon, but filters cost about $0.90 per gallon. |
| Installation & cabinet fit | 6.0Dispenser, not a pitcher; needs a fridge shelf edge to reach the spigot. | 6.022-cup dispenser; takes up fridge space and must sit at a shelf edge. |
| Flow & daily convenience | 7.0Spigot and big reservoir mean fewer refills. The 40-gallon filter goes quickly in a big household. | 6.5Spigot and TDS read-out; the 20-gallon filter can be spent in a few weeks. |
| Health, materials & sustainability | 6.5Plastic; keeps minerals. | 5.0Demineralizes and lowers pH; frequent cartridge waste. |
| Reliability & support | 6.5Sold by Amazon; filters widely available. | 6.5Sold by Amazon; ZeroWater filters are widely available. |
Specifications
| Spec | PUR DS1811Z (PUR PLUS 30-Cup Dispenser) | ZeroWater ZD-022-RR (22-Cup Ready-Read Dispenser) |
|---|---|---|
| Filter type | Activated carbon + ion exchange gravity cartridge (PUR PLUS PPF951K) | 5-stage ion exchange + activated carbon gravity cartridge |
| PFAS certification (as stated by maker) | IAPMO-certified to reduce Total PFAS (PUR PLUS filter), announced Sept 2026 | IAPMO certified to reduce PFOA/PFOS (NSF/ANSI 53) |
| Third-party certified for PFAS | Yes | Yes |
| Filtration stages | — | 5 |
| Filter capacity (primary cartridge) | 40 gal | 20 gal |
| Rated filter life | 2 months | — |
| Est. annual filter cost | 108 USD | 432 USD |
| Pure-to-drain ratio (RO) | N/A (no wastewater) | N/A (no wastewater) |
| Needs electrical outlet | No | No |
| Uses dedicated faucet (drilling may be needed) | No | No |
| Water capacity | 30 cups | 22 cups |
| Pitcher body material | Plastic | Plastic |
PUR DS1811Z (PUR PLUS 30-Cup Dispenser)
Pros
- Same Total PFAS-certified filter as our top pick
- 30-cup capacity
- Spigot dispensing
- Moderate filter cost
Cons
- Not lab-tested for PFAS on its own
- Some listings describe only lead and microplastics
- A 40-gallon filter goes fast in a big household
A sensible high-capacity alternate. Buy it for convenience, not because it filters better than the pitcher.
Full PUR DS1811Z (PUR PLUS 30-Cup Dispenser) review →ZeroWater ZD-022-RR (22-Cup Ready-Read Dispenser)
Pros
- Removes fluoride and dissolved solids
- 22-cup capacity with spigot
- Built-in TDS read-out
- Sold by Amazon
Cons
- PFOA/PFOS certification only
- About four times PUR's filter cost
- Demineralizes water
- Needs fridge-shelf-edge placement
A niche choice for big households that want ZeroWater's full demineralization. The PUR dispenser is the better PFAS pick.
Full ZeroWater ZD-022-RR (22-Cup Ready-Read Dispenser) review →Both products are part of our guide The Best PFAS-Removing Water Filter Pitchers of 2026, where you can see every pick, how we score and current prices from each retailer.