PondMax Pre Filter Sponges: A Must-Have for Clean, Healthy Ponds

Enhance the performance of your pond or fountain pump and keep your water crystal-clear and healthy with PondMax Pre Filter Sponges. These sponges provide both mechanical and biological filtration, ensuring optimum water quality in ponds, aquariums, and aquaponics systems. Easy to install and maintain, enjoy more time appreciating your beautiful outdoor space and less time cleaning your pump.

Features and Benefits

  • Universal compatibility: Suitable for use in ponds, fountains, aquariums, and aquaponics systems
  • Ideal for pumps of varying sizes: Multiple sponge dimensions ensure compatibility with a range of pond pump models and capacities
  • Mechanical and biological filtration: Fine spacing catches small particles while promoting the growth of beneficial bacteria
  • Increased pump efficiency: Pre-filter sponge reduces strain on your pump, prolonging its life and reducing maintenance needs
  • Easy installation: Simply remove your existing inlet cover and sponge, then screw the pre-filter sponge directly into the pump

How to Use

  1. Take off the existing inlet/sponge cover and sponge from your pond pump as if you are going to clean the pump impeller.
  2. Measure the thread diameter in front of the impeller.

Aqua Gardening Suggests These are Best For

PondMax Pre Filter Sponges are ideal for anyone with a pond, fountain, aquarium, or aquaponics system who wants to increase their pump's efficiency, preserve its lifespan, and ensure cleaner, healthier water. Suitable for a variety of pond pump models, sizes, and capacities, these sponges provide a convenient, effective solution for maintaining prime water quality.

Notes from Aqua Gardening

  • Sponge dimensions and pump suitability:
    • 10 x 10 x 15cm: Suits 500 - 2000L/hr pond pumps - Thread Size 1/2", 15mm BSP
    • 12 x 12 x 30cm: Suits 2500 - 6000L/hr pond pumps - Thread Size 1/2" or 1", 15mm or 25mm BSP
    • 15 x 15 x 45cm: Suits 4000 - 12000L/hr pond pumps - Thread Size 1", 25mm BSP
  • Cage: Replacement part - includes a small filter and protective cage for PondMAX EV Pumps. Suits pump models 1900 through 4900, and 1910 to 4910 in the DC range.

  • 10 x 10 x 15cm pre filter can be used with REEFE RP610 / 1100 / 1500 / 2400 and RFK1100 / 1500 / 2400
  • 12 x 12 x 30cm pre filter can be used with REEFE RP4000 / 6000 / 8000 / 10000 / 180000 / 20000, and RFK4000 / 5000 (Some sizes will need an additional threaded adapter)


Do these PondMax Pre Filter Sponges fit on any pond pump?

PondMax Pre Filter Sponges are designed to fit a variety of pond pumps with a 1/2 inch (15mm) or 1 inch (25mm) BSP threaded inlet. Check the thread diameter in front of the impeller on your pump to ensure compatibility.

How do PondMax Pre Filter Sponges improve the efficiency of my pond pump?

These sponges provide mechanical and biological filtration for your pond, removing debris and small particles before they enter the pump. This not only helps to maintain a clean pond but also results in a more efficient pump performance and longer life.

Can PondMax Pre Filter Sponges be used with fountain pumps as well?

Yes, PondMax Pre Filter Sponges are ideal for both pond and fountain pumps, providing efficient filtration across various water features.

How often should I clean the PondMax Pre Filter Sponge?

The large surface area of these sponges allows for longer periods between cleaning compared to smaller filters. It is recommended to clean the sponge periodically, checking on its condition and visually inspecting it for clogging.

Are there any additional components required to fit a PondMax Pre Filter Sponge to my pump?

No additional components are needed. Simply remove the existing inlet or sponge cover from your pump, check the thread diameter, and screw in the PondMax Pre Filter Sponge if it is compatible.

How do I choose the right size PondMax Pre Filter Sponge for my pond pump?

PondMax Pre Filter Sponges come in various dimensions to suit different pump capacities. Here are the size guidelines:

- 10 x 10 x 15cm: Suits 500 - 2000L/hr pond pumps

- 12 x 12 x 30cm: Suits 2500 - 6000L/hr pond pumps

- 15 x 15 x 45cm: Suits 4000 - 12000L/hr pond pumps

Ensure to select the correct size for your specific pond pump.

Can I use a PondMax Pre Filter Sponge in my aquarium or aquaponics system?

Yes, PondMax Pre Filter Sponges can be used in aquariums and aquaponics systems for added filtration and better water quality.

Still Unsure if This Product is Right for You?

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