Why it matters
The 007 is one of the most common hydronic circulators in North America. Its replaceable cartridge means the motor and impeller can be swapped without draining the system or removing the body.
Universal flange-to-flange dimensions make it a drop-in replacement for many circulators, and it's maintenance free.
Who it's for, and who should skip it
Good fit if
- Boiler loops
- Radiant heat
- Like-for-like replacement
Look elsewhere if
- Potable hot water (choose a bronze or stainless model)
- Variable-speed needs
Pros and cons
Pros
- Replaceable cartridge
- Universal fit
- Widely stocked
Cons
- Fixed speed
- Cast iron is for closed loops
- Few specs on the listing
Limitations to weigh
- Circulators are sized to the heating loop; match the replacement to the old pump's flange size and speed setting.
- Cast iron circulators are for closed heating loops, not drinking water.
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 | Cast Iron | Retailer |
|---|---|---|
| Dimensions (seller) | 7"L x 7"W x 6"H | Retailer |
| Voltage | 115 V | Retailer |
| Horsepower | 1/25 HP | Retailer |
| Model number | GIDDS-523231 | Retailer |
Alternatives worth comparing
More booster & recirculation pumps we cover
Final verdict
The safe replacement for most boiler circulators.
Where to buy
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Questions buyers ask
What is the cartridge?
The motor and impeller assembly, replaceable without removing the pump body.
Can it be used for drinking water?
Cast iron circulators are for closed heating loops.