Davey BT20-40 Torrium2
#3 in Fixed speedFull review
For a large or multi-storey house with a very weak supply. Plan for a 240 V outlet.
Amazon $1,287$1,287
The Davey BT20-40 Torrium2 is the better water pressure booster pump overall, rated 3.5 to 2.9. The Davey BT20-40 Torrium2 leads on pressure and flow. The ZYIY 15GR-15 120W Booster costs $1,187.01 less ($99.99 vs $1,287).
ZYIY 15GR-15 120W Booster
#13 in Fixed speedFull review
A small inline pump for one bathroom or a tankless heater that lacks pressure. Not a whole house booster.
Amazon $99.99$99.99
Prices were last checked November 2, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Davey BT20-40 Torrium2 for pressure (176 ft maximum head (about 76 psi) vs 49 ft maximum head (about 21 psi)) and flow (20 gpm maximum vs 7 gpm maximum).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every fixed speed water pressure booster pump; a clear win is highlighted. How we rank explains each one.
| Factor weight | Davey BT20-40 Torrium2 | ZYIY 15GR-15 120W Booster |
|---|---|---|
| Overall rating | 3.5/5 | 2.9/5 |
| Value 30% | 0 $64.35 per gpm ($1,287, 20 gpm) | 71 $14.28 per gpm ($99.99, 7 gpm) |
| Flow 15% | 55 20 gpm maximum | 0 7 gpm maximum |
| Pressure 15% | 97 176 ft maximum head (about 76 psi) | 0 49 ft maximum head (about 21 psi) |
| Protection 10% | 100 dry-run and overheat protection | 50 protection not stated (neutral score used) |
| Noise 10% | 50 noise rating not published (neutral score used) | 50 noise rating not published (neutral score used) |
| Warranty 20% | 100 3-year warranty | 50 warranty not published (neutral score used) |
Specifications
| Davey BT20-40 Torrium2 | ZYIY 15GR-15 120W Booster | |
|---|---|---|
| Pumping | ||
| Drive | Fixed speed | Fixed speed |
| Maximum flow | 20 gpm | 7 gpm |
| Maximum head | 176 ft (76 psi) | 49 ft (21 psi) |
| Motor | 1.2 HP | - |
| Input power | 1,100 W | 120 W |
| Ports | 1 in | 0.8 in |
| Protection and build | ||
| Built-in tank | No | No |
| Dry-run protection | Yes | - |
| Overheat protection | Yes | - |
| Voltage | 240 V | 120 V |
| Weight | 27.3 lb | 7.2 lb |
| Warranty | 3 years | - |