Simer 4075SS-01 Booster Pump
#1 in Fixed speedFull review
A simple inline booster for a city supply that is a little weak, from a long established US pump brand. Check stock before counting on it.
Amazon $660$660
3.5/5
For a large or multi-storey house with a very weak supply. Plan for a 240 V outlet.
- 20 gpmFlow
- 176 ft (76 psi)Head
- Fixed speedDrive
- 1.2 HPMotor
Check price at Amazon$1,287
Price checked November 2, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Adds about 40 psi at 20 gpm, the strongest boost in the BT range
- Shuts off near 76 psi, enough for a tall house on a poor supply
- Multistage stainless steel pump that also takes hot water up to 176 F
- Torrium2 controller stops the pump on loss of prime and retries on its own
Cons
- Fixed speed with on and off switching, so pressure is less even than an inverter booster
- Needs a 240 V NEMA 6-15 outlet
- No noise rating published
- Warranty is listed as 36 months on the product page but 1 year on the datasheet; confirm with the seller
The Davey BT family
Every Davey BT model we rank, smallest first. Ratings compare each against its own drive.
| Model | Flow | Rating | Price |
|---|---|---|---|
| Davey BT14-30 Torrium2 | 14 gpm | 3.0/5 | $1,151 |
| Davey BT14-45 Torrium2 | 14 gpm | 3.2/5 | $1,134.66 |
| Davey BT20-30 Torrium2 | 20 gpm | 3.3/5 | $1,242 |
| Davey BT20-40 Torrium2 (this one) | 20 gpm | 3.5/5 | $1,287 |
| Davey BT30-30 Torrium2 | 30 gpm | 3.6/5 | $1,420 |
How it scores
The rating comes from 6 measured or published factors, each scored 0-100 against fixed reference points for its drive. How we rank explains each one.
Specifications
| Model number | BT20-40T2-USA |
|---|---|
| Pumping | |
| Drive | Fixed speed |
| Maximum flow | 20 gpm |
| Maximum head | 176 ft (76 psi) |
| Motor | 1.2 HP |
| Input power | 1,100 W |
| Ports | 1 in |
| Protection and build | |
| Built-in tank | No |
| Dry-run protection | Yes |
| Overheat protection | Yes |
| Voltage | 240 V |
| Weight | 27.3 lb |
| Warranty | 3 years |
Alternatives in this drive
Davey BT30-30 Torrium2
#2 in Fixed speedFull review
For a large home or a house plus irrigation that needs a lot of flow at a moderate boost. Plan for a 240 V outlet.
Amazon $1,420$1,420
Grundfos SCALA1 5-55 230V
#4 in Fixed speedFull review
For houses fed from a cistern or break tank that need a lot of head. City water users with some inlet pressure should look at a variable speed pump instead.
Amazon $1,122.89$1,122.89
Compare
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