Certified pumps / Blue Torrent
Blue Torrent EZ 500
Above-ground, non-self-priming filter pump, single-speed. ENERGY STAR certified with a weighted energy factor of 7.1 kgal/kWh against a 4.92 minimum for its size class, from the record published 2021-09-29. Sold as EZ 500, AC 500.
How its efficiency compares
The rail below places this pump against the 3 single-speed above-ground records in the certified list and against the closest-sized pumps of any speed class. The tick is the median reported WEF for all 83 certified above-ground pumps, 8.2 kgal/kWh.
Single-speedCategory median, 8.2
Blue Torrent EZ 500Single-speed0.073 hhpmin 4.92
Blue Torrent AC 750Single-speed0.100 hhpmin 4.92
0 kgal/kWhWeighted Energy Factor, higher is better13.1
Bars are reported WEF from each pump's own certified record. Colour is the speed class. The outlined bar is this pump; the others are the nearest-sized certified above-ground pumps in the detailed set, within 0.2 hydraulic horsepower.
What it draws to move water
This record publishes one measured operating point, so there is no second point to draw a line between. A single-speed pump is tested at one speed, and the figures in the table below are the whole of what the test reports.
Certified specification
| Brand and model | Blue Torrent EZ 500 |
|---|---|
| Model numbers on this record | EZ 500, AC 500 |
| Other names on the record | Blue Torrent |
| ENERGY STAR partner | Asia Connection LLC |
| Pump sub-type | Above-Ground (Non-Self-Priming) Pool Filter Pump |
| Speed class | Single-speed |
| Motor construction | Capacitor Start - Capacitor Run |
| Rated hydraulic horsepower | 0.073 hhp |
| Rated motor horsepower | 0.5 hp |
| Reported WEF | 7.1 kgal/kWh |
| Minimum WEF for its class | 4.92 kgal/kWh |
| Low-speed point: flow | 32.6 gpm |
| Low-speed point: head | 8.9 ft of water |
| Low-speed point: speed | 3450 rpm |
| Low-speed point: input power | 273 W |
| High-speed point | not published on this record |
| Standby power | not published |
| Freeze protection | No |
| Connected functionality | No |
| Available on market | 2021-10-01 |
| Date qualified | 2021-09-29 |
| Markets | United States, Canada |
| Source record | ENERGY STAR dataset, pd_id 2384777 / 2674149, retrieved 2026-10-17 |
Rated motor horsepower and rated hydraulic horsepower are different quantities. Hydraulic horsepower is the water power the pump actually produced in the test; motor horsepower is a nameplate rating that includes the motor's own losses and any service factor. Two pumps sold as "1.5 hp" can differ by more than a factor of two in hydraulic horsepower, which is why this site sizes and compares on hhp and flow.
What it costs to run
The scenario below is this site's editorial default, not a figure from the certified record: 10 hours a day at the low-speed measured point, at 18.31¢/kWh — the u.s. average retail price of electricity to residential customers for July 2026. Change any of it in the cost calculator, which opens with this record's own figures already in the fields: 273 W at the low-speed point. Nothing on this page is an estimate, and neither is anything the calculator starts from — the hours, the electricity price and the season length are the only editorial numbers, and all three are yours to change.
| Operating point | Watts | Hours/day | kWh/day | Cost/day |
|---|---|---|---|---|
| Low-speed measured point | 273 | 10 | 2.730 | $0.50 |
| Total | — | 24 | 2.730 | $0.50 |
These are arithmetic on the certified watts, nothing more. A pump installed in your plumbing sits on a different system curve than the test rig, so its real draw at a given speed will differ. Measuring at the panel or with a clamp meter is the only way to know your own number.
Comparable certified pumps
Certified above-ground pumps within 0.2 hydraulic horsepower of this one, best WEF first:
| Pump | Speed class | hhp | WEF | Low-speed W | Season cost |
|---|---|---|---|---|---|
| Blue Torrent AC 750 | Single-speed | 0.100 | 6 | 361 | $119 |
Next: work out whether this pump's flow turns your pool over often enough with the turnover calculator, prefilled with its 32.6 gpm low-speed measured flow; compare it against another certified pump at one electricity price in the cost calculator's side-by-side view; see the other Blue Torrent records held in detail; read what the weighted energy factor does and does not tell you; or check the methodology for every source and assumption behind this page.