AstralPool CTX 500C 2HP Pool Pump – Compatible Replacement

This 2HP pool pump is designed as a direct, plug in compatible replacement for AstralPool CTX 500C installations, offering high circulation capacity while retaining quiet and efficient operation. With no plumbing modifications needed, it is an excellent choice for larger residential pools or systems with higher circulation demands such as heaters, chlorinators, solar heating, spa jets or water features.

Manufactured in Australia and built specifically for local conditions, the pump body is constructed from high quality engineering-grade thermoplastic that resists corrosion, UV exposure and pool chemical wear. Internally, the stainless steel shaft, ceramic mechanical seal and true carbon face provide dependable performance and extended service life. The balanced impeller and diffuser system delivers robust water movement while keeping operational noise to a minimum.

This pump is part of a full compatible replacement range, with other horsepower options available (1HP, 1.25HP, and 1.5HP) to suit a variety of pool sizes and system requirements. All models share a consistent installation footprint, making future upgrades or replacements simple. Dual-size barrel unions allow connection to both 40mm and 50mm PVC pipe, and the clear inspection lid provides fast access for routine maintenance.

Compatibility note: This is an aftermarket compatible replacement designed to suit AstralPool CTX installations. It is not manufactured by, endorsed by, or affiliated with AstralPool.

Key Features

• Direct plug-in compatible replacement for CTX 500C
  Designed for easy swap-out with no plumbing changes required.

• High-flow 2HP performance
  Excellent for larger pools or higher circulation systems with additional equipment.

• Australian made and built for local conditions
  Engineered to withstand harsh climates and everyday pool use.

• Corrosion-resistant, durable construction
  Engineering-grade thermoplastic body resists UV, chemicals and weather.

• Quiet operation
  Balanced impeller and diffuser design reduces operational noise.

• Premium internal components
  Stainless steel shaft, ceramic mechanical seal and true carbon face for reliability.

• Flexible plumbing compatibility
  Supplied barrel unions suit both 40mm and 50mm PVC pipe.

• Easy maintenance access
  Clear inspection lid allows quick basket cleaning.

Specifications – 2HP Version

• Horsepower: 2 HP

• Flow Rate @ 8m Head: Approx. 490 LPM

• Voltage / Phase: 240V / Single Phase

• Power Input: Approx. 1980Watts

• Full Load Amps: Approx. 8.6 A

• Noise Level: Approx. 65 dB(A) @ 1 metre

• Pipe Connections: 40mm or 50mm PVC

• Maximum Water Temperature: 45°C

• Construction: Engineering grade thermoplastic, corrosion resistant

• Shaft & Seal: Stainless steel shaft, ceramic mechanical seal, true carbon face

• Manufacture: Australia

Installation Guide (Overview)

1. Position the pump on a solid, level base close to the pool water level.

2. Ensure adequate clearance around the motor for ventilation and cooling.

3. Connect suction and discharge pipework using the supplied barrel unions.

4. Confirm all pipe connections are airtight and valves are open.

5. Prime the pump by filling the strainer basket with water.

6. Connect to a 240V power supply protected by an RCD.

7. Start the pump and confirm steady water flow.

All installations must comply with relevant Australian electrical and plumbing standards.

Maintenance Tips

• Clean the strainer basket regularly to maintain proper water flow.

• Inspect and lubricate the lid O-ring with silicone grease when required.

• Never operate the pump without water in the system.

• Maintain balanced pool water chemistry to protect internal components.

• Keep ventilation areas clear to prevent motor overheating.

Warranty

This pool pump includes a limited manufacturer’s warranty of 3 years on the pump body, 2 years on the motor and 12 months on the mechanical seal, subject to correct installation and normal operating conditions.

What’s in the Box

• 1 × 2HP Pool Pump

• Barrel unions suitable for 40mm and 50mm PVC pipe

• Clear inspection lid with strainer basket fitted

• Installation and operation manual