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QB 2.5hp 2spd - Fine Thread (1850W) AMP
Description

Enjoy powerful hydrotherapy without the power bill shock with the QB 2.5HP Two-Speed Spa Pump. Built on the proven QB Series platform from Davey, this spa booster pump delivers strong jet performance on high speed while offering quiet, energy-efficient circulation on low speed. It’s an ideal choice for Australian spas and swim spas that need dependable performance in all seasons.

Featuring fine thread 50mm unions and supplied with an AMP plug, the pump is designed for straightforward installation and can be used as a direct replacement for many LX and other branded spa pumps—minimising downtime and plumbing changes.

QB 2.5hp 2spd - Fine Thread (1850W) AMP

Regular price $1,036.00

QB2502AUS-AMP

Specifications
  • Availability:
    In stock

Enjoy powerful hydrotherapy without the power bill shock with the QB 2.5HP Two-Speed Spa Pump. Built on the proven QB Series platform from Davey, this spa booster pump delivers strong jet performance on high speed while offering quiet, energy-efficient circulation on low speed. It’s an ideal choice for Australian spas and swim spas that need dependable performance in all seasons.

Featuring fine thread 50mm unions and supplied with an AMP plug, the pump is designed for straightforward installation and can be used as a direct replacement for many LX and other branded spa pumps—minimising downtime and plumbing changes.

QB 2.5hp 2spd - Fine Thread (1850W) AMP
Regular price $1,036.00

Product Information

Property Details
Brand Davey Spa-Quip
Specifications Specifications

Model: QB 2.5HP Two-Speed Spa Pump

Horsepower: 2.5 HP

Motor Output:

Low Speed: 400W

High Speed: 1850W

Speeds: Two-speed (circulation / boost)

Power Supply: 240V (Australian standard)

Connections: 50mm fine thread unions

Plug Type: AMP plug supplied

Application: Spa and swim spa booster pump

Technical Details

The QB 2.5HP pump utilises a dual-speed motor to balance performance and efficiency. On low speed, it provides economical circulation for heating and filtration. On high speed, it delivers the pressure and flow required for responsive spa jets.

Fine thread unions ensure compatibility with a wide range of existing spa plumbing—particularly systems previously fitted with LX pumps—making this model a popular upgrade or replacement option. Robust internal components and a durable motor housing are engineered to withstand warm water temperatures and humid spa environments common in Australian backyards.
Functionality

Supplies powerful water flow for spa jets on high speed

Operates quietly and efficiently on low speed for circulation

Integrates with standard two-speed spa control systems

Supports both everyday spa operation and high-demand hydrotherapy

Functions as a direct replacement for compatible LX and other branded pumps

Installation Notes & Instructions

Designed for easy retrofit or new installations

Compatible with 50mm fine thread plumbing connections

Supplied with AMP power cord for quick electrical connection

Mount on a solid, level base to reduce vibration and noise

Confirm inlet/outlet orientation and flow direction before commissioning

Electrical installation should comply with Australian standards

Professional installation is recommended for safety and warranty compliance
Key Features & Benefits

Two-Speed Energy Efficiency

Low speed (400W) for economical day-to-day circulation

High speed (1850W) for strong, invigorating jet performance

Direct Replacement Compatibility

Fine thread unions suit many LX and other branded spa pumps

Minimises plumbing modifications and installation time

Powerful 2.5HP Output

Ideal balance of performance and efficiency for residential spas

Australian-Ready Engineering

Designed to suit Australian electrical standards and spa conditions

Durable construction for long service life

Installer-Friendly Design

50mm unions and AMP plug simplify setup

Integrates easily with common spa control packs

Efficient Power for Relaxing Spa Sessions

The QB 2.5HP Two-Speed Spa Pump delivers the perfect blend of performance, efficiency and compatibility for Australian spa owners. With reliable QB Series engineering, fine thread union connections and flexible two-speed operation, it’s a smart choice for restoring or upgrading your spa’s performance—keeping your water moving smoothly and your jets working at their best.
Documentation Installation & Use Considerations

Installation should be completed by a qualified technician to comply with Australian electrical and plumbing standards. The pump must be mounted on a level, stable surface with sufficient clearance for servicing.

Regular maintenance should include checking water flow, inspecting connections, and monitoring motor performance. Proper water chemistry and flow are essential to prolong the pump’s lifespan and maintain optimal efficiency.


Why It’s a Good Choice

The QB 2.5hp 2-Speed Fine Thread (1850W) AMP Spa Pump by Spa Craft is an ideal choice for Australian spa owners seeking a reliable, energy-efficient, and high-performance circulation system. Its dual-speed flexibility, durable construction, and quiet operation ensure your spa remains comfortable and functional year-round.

With strong performance, low maintenance, and long-term durability, this pump delivers consistent water flow and optimised jet operation. For homeowners or commercial operators seeking a dependable spa pump, the QB 2.5hp AMP Spa Pump is a smart and reliable investment.

Fast Australia-Wide Shipping

Orders dispatched within 24–48 hours.

Secure Checkout

SSL-encrypted transactions. Shop confidently.

Expert Customer Support

Talk to real pool specialists when you need help. (02) 4943 7311

Newcastle’s first and most trusted pool shop. Established in 1967, we’re a proudly Australian, family-owned business now serving its third generation, with over 150 years of combined industry experience. From cutting-edge robotic cleaners and energy-efficient pool pumps to water treatments, heaters, covers, and filters, we carry only the best brands and stand behind every product we sell.

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