Why it matters
The ZeroPone is an inline circulator with three speeds: 93, 67 or 46 W, giving 10.4, 7.66 or 5.28 GPM and up to 20, 16 or 13 ft of head. It has a cast iron head, aluminum housing, 3/4 in NPT ports and a 145 psi rating, at about 25 dB.
It has no timer or sensor of its own, so pair it with a timer or thermostat if you want it to run only when needed.
Who it's for, and who should skip it
Good fit if
- Return-line systems
- Water heater loops
- Budget installs
Look elsewhere if
- Owners who want a timer built in
- Brand-name warranty seekers
Pros and cons
Pros
- Three speeds
- Quiet
- Low price
Cons
- No timer
- Lesser-known brand
- Runs constantly unless controlled
Limitations to weigh
- Under-sink recirculation without a return line sends warm water back through the cold line, so the cold tap at that sink can run warm for a few seconds.
- Hot water and electricity together: use a grounded outlet and follow the maker's installation steps.
- Add a timer or aquastat so it doesn't run around the clock.
Specifications
Every figure below comes from the source shown in brackets. Where the maker doesn't state something, we say so instead of estimating.
| Material | Aluminum, Cast Iron | Retailer |
|---|---|---|
| Dimensions (seller) | 5.1"L x 4.7"W x 4.6"H | Retailer |
| Product weight | 5.5 lb | Retailer |
| Max flow (maker) | 10.4 GPM | Retailer |
| Max head / lift (maker) | 6 m | Retailer |
| Voltage | 120 V | Retailer |
| Horsepower | 0.12 HP | Retailer |
| Model number | ZPHWCP003 | Retailer |
| Housing | cast iron | Retailer |
Alternatives worth comparing
More booster & recirculation pumps we cover
Final verdict
Cheap and capable if you add your own control.
Where to buy
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