Grundfos SCALA1 3-45 — 99631736 Water Booster Pump 230V
Grundfos SCALA1 3-45 (99631736) — Self-Priming All-in-One Booster Pump
The Grundfos SCALA1 3-45 is a sleek, integrated booster pump system combining motor, pump, sensor, controller, and tank into one composite enclosure. Designed for residential pressure boosting and tank-fed systems, it delivers ~14 GPM and up to 147 ft head, with smart features like Bluetooth connectivity and built-in protections.
Key Features & Benefits
- Compact, all-in-one design — minimal footprint and wiring
- Self-priming capability (can lift from depths up to ~8 m)
- Bluetooth connectivity for monitoring & configuration via Grundfos GO app
- Built-in protections: dry-run shutoff, cycling protection, max runtime, motor overload
- Quiet operation around 55 dB
Applications
- Residential homes and apartments
- Pressure boosting for weak municipal supply
- Garden irrigation and tank-to-home supply
- Rainwater harvesting systems (boost from tank)
Specifications
| Model / Variant | SCALA1 3-45 (99631736) |
| Rated Flow | ~14 GPM (US) |
| Max Head | 147.6 ft (45 m) |
| Rated Voltage / Phase | 230 V, Single-phase |
| Working Pressure | 116 psi (8 bar) |
| Max Inlet Pressure | 43.5 psi (3 bar) |
| Noise Level | ~55 dB |
Common Questions
Q: How deep can it self-prime?
A: Up to ~8 m (≈ 26 ft), with proper priming procedure and airtight suction line.
Q: Does it need a control box or external parts?
A: No — it’s an integrated system. All components are built into the one unit.
Q: Can I monitor it via smartphone?
A: Yes — built-in Bluetooth enables communication with Grundfos GO app for monitoring and settings.
Q: Is it quiet enough for indoor installation?
A: Yes — it’s rated around 55 dB, which is acceptable for many indoor or near-living-space installs.
SCALA1 3-45 gives you compact, smart pressure boosting with built-in protections and minimal setup — ideal for homes that demand no-fuss performance.
This item replaces: 96860201, 96860207
Compare Grundfos SCALA1 Booster Pump Models
| Model | Voltage | Flow Range (GPM) | Max Head (m / ft) | Type | Connectivity | Key Use Case |
|---|---|---|---|---|---|---|
| SCALA1 3-45 (99631736) | 230 V | Up to ≈ 14 GPM | ≈ 45 m / 148 ft | Self-priming | Bluetooth via Grundfos GO app | General residential boosting (230 V supply) |
| SCALA1 3-45 (99631742) | 115 V | Up to ≈ 14 GPM | ≈ 45 m / 148 ft | Self-priming | Bluetooth via Grundfos GO app | Homes with standard 115 V circuits |
| SCALA1 5-55 (99631739) | 230 V | Up to ≈ 18 GPM | ≈ 55 m / 180 ft | High-head, self-priming | Bluetooth via Grundfos GO app | Multi-story homes / longer pipe runs |
| SCALA1 5-55 (99631754) | 115 V | Up to ≈ 18 GPM | ≈ 55 m / 180 ft | High-head, self-priming | Bluetooth via Grundfos GO app | High-performance boosting on 115 V supply |
All SCALA1 boosters share the same smart, compact design — just choose your voltage and performance level for the perfect household pressure solution
Grundfos SCALA1 3-45 (99631736) — Self-Priming All-in-One Booster Pump
The Grundfos SCALA1 3-45 is a sleek, integrated booster pump system combining motor, pump, sensor, controller, and tank into one composite enclosure. Designed for residential pressure boosting and tank-fed systems, it delivers ~14 GPM and up to 147 ft head, with smart features like Bluetooth connectivity and built-in protections.
Key Features & Benefits
- Compact, all-in-one design — minimal footprint and wiring
- Self-priming capability (can lift from depths up to ~8 m)
- Bluetooth connectivity for monitoring & configuration via Grundfos GO app
- Built-in protections: dry-run shutoff, cycling protection, max runtime, motor overload
- Quiet operation around 55 dB
Applications
- Residential homes and apartments
- Pressure boosting for weak municipal supply
- Garden irrigation and tank-to-home supply
- Rainwater harvesting systems (boost from tank)
Specifications
| Model / Variant | SCALA1 3-45 (99631736) |
| Rated Flow | ~14 GPM (US) |
| Max Head | 147.6 ft (45 m) |
| Rated Voltage / Phase | 230 V, Single-phase |
| Working Pressure | 116 psi (8 bar) |
| Max Inlet Pressure | 43.5 psi (3 bar) |
| Noise Level | ~55 dB |
Common Questions
Q: How deep can it self-prime?
A: Up to ~8 m (≈ 26 ft), with proper priming procedure and airtight suction line.
Q: Does it need a control box or external parts?
A: No — it’s an integrated system. All components are built into the one unit.
Q: Can I monitor it via smartphone?
A: Yes — built-in Bluetooth enables communication with Grundfos GO app for monitoring and settings.
Q: Is it quiet enough for indoor installation?
A: Yes — it’s rated around 55 dB, which is acceptable for many indoor or near-living-space installs.
SCALA1 3-45 gives you compact, smart pressure boosting with built-in protections and minimal setup — ideal for homes that demand no-fuss performance.
This item replaces: 96860201, 96860207
Compare Grundfos SCALA1 Booster Pump Models
| Model | Voltage | Flow Range (GPM) | Max Head (m / ft) | Type | Connectivity | Key Use Case |
|---|---|---|---|---|---|---|
| SCALA1 3-45 (99631736) | 230 V | Up to ≈ 14 GPM | ≈ 45 m / 148 ft | Self-priming | Bluetooth via Grundfos GO app | General residential boosting (230 V supply) |
| SCALA1 3-45 (99631742) | 115 V | Up to ≈ 14 GPM | ≈ 45 m / 148 ft | Self-priming | Bluetooth via Grundfos GO app | Homes with standard 115 V circuits |
| SCALA1 5-55 (99631739) | 230 V | Up to ≈ 18 GPM | ≈ 55 m / 180 ft | High-head, self-priming | Bluetooth via Grundfos GO app | Multi-story homes / longer pipe runs |
| SCALA1 5-55 (99631754) | 115 V | Up to ≈ 18 GPM | ≈ 55 m / 180 ft | High-head, self-priming | Bluetooth via Grundfos GO app | High-performance boosting on 115 V supply |
All SCALA1 boosters share the same smart, compact design — just choose your voltage and performance level for the perfect household pressure solution
Description
Grundfos SCALA1 3-45 (99631736) — Self-Priming All-in-One Booster Pump
The Grundfos SCALA1 3-45 is a sleek, integrated booster pump system combining motor, pump, sensor, controller, and tank into one composite enclosure. Designed for residential pressure boosting and tank-fed systems, it delivers ~14 GPM and up to 147 ft head, with smart features like Bluetooth connectivity and built-in protections.
Key Features & Benefits
- Compact, all-in-one design — minimal footprint and wiring
- Self-priming capability (can lift from depths up to ~8 m)
- Bluetooth connectivity for monitoring & configuration via Grundfos GO app
- Built-in protections: dry-run shutoff, cycling protection, max runtime, motor overload
- Quiet operation around 55 dB
Applications
- Residential homes and apartments
- Pressure boosting for weak municipal supply
- Garden irrigation and tank-to-home supply
- Rainwater harvesting systems (boost from tank)
Specifications
| Model / Variant | SCALA1 3-45 (99631736) |
| Rated Flow | ~14 GPM (US) |
| Max Head | 147.6 ft (45 m) |
| Rated Voltage / Phase | 230 V, Single-phase |
| Working Pressure | 116 psi (8 bar) |
| Max Inlet Pressure | 43.5 psi (3 bar) |
| Noise Level | ~55 dB |
Common Questions
Q: How deep can it self-prime?
A: Up to ~8 m (≈ 26 ft), with proper priming procedure and airtight suction line.
Q: Does it need a control box or external parts?
A: No — it’s an integrated system. All components are built into the one unit.
Q: Can I monitor it via smartphone?
A: Yes — built-in Bluetooth enables communication with Grundfos GO app for monitoring and settings.
Q: Is it quiet enough for indoor installation?
A: Yes — it’s rated around 55 dB, which is acceptable for many indoor or near-living-space installs.
SCALA1 3-45 gives you compact, smart pressure boosting with built-in protections and minimal setup — ideal for homes that demand no-fuss performance.
This item replaces: 96860201, 96860207
Compare Grundfos SCALA1 Booster Pump Models
| Model | Voltage | Flow Range (GPM) | Max Head (m / ft) | Type | Connectivity | Key Use Case |
|---|---|---|---|---|---|---|
| SCALA1 3-45 (99631736) | 230 V | Up to ≈ 14 GPM | ≈ 45 m / 148 ft | Self-priming | Bluetooth via Grundfos GO app | General residential boosting (230 V supply) |
| SCALA1 3-45 (99631742) | 115 V | Up to ≈ 14 GPM | ≈ 45 m / 148 ft | Self-priming | Bluetooth via Grundfos GO app | Homes with standard 115 V circuits |
| SCALA1 5-55 (99631739) | 230 V | Up to ≈ 18 GPM | ≈ 55 m / 180 ft | High-head, self-priming | Bluetooth via Grundfos GO app | Multi-story homes / longer pipe runs |
| SCALA1 5-55 (99631754) | 115 V | Up to ≈ 18 GPM | ≈ 55 m / 180 ft | High-head, self-priming | Bluetooth via Grundfos GO app | High-performance boosting on 115 V supply |
All SCALA1 boosters share the same smart, compact design — just choose your voltage and performance level for the perfect household pressure solution
