PortaPlunge Filter Only | Cold Plunge Water Filter System

Sale price£135.00

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This is a limited prototype batch for early adopters.

Design and specifications may be updated in future production runs.

Keep your plunge water fresh without the faff of constant refills. The PortaPlunge Filter Only is a plug and play filtration system designed for new plungers who are using natural cold weather to chill their pool and simply need clean, circulating water.

This prototype filter kit partners perfectly with the PortaPlunge range and other above ground plunge or pool setups. It uses a 330 gallon ground pool cartridge filter pump to circulate, decontaminate and filter your water, helping to remove dust and debris from the bottom of the pool and keep your water clearer for longer.

The lightweight plastic housing is durable, reusable and easy to move into position. All key accessories are included, so you are not hunting around for extra fittings.

Just connect, plug in and plunge.

Key features

  • Filter only, no chiller
    Ideal if you are using outdoor temperatures or ice to cool your plunge and simply want to keep the water cleaner between sessions.

  • Effective filtration
    Multi functional integrated design for decontamination, circulation and filtration, helping to keep your plunge water clean and more hygienic.

  • 330 gallon capacity pump
    Provides reliable circulation for small above ground pools and plunge setups, supporting clearer water and less manual cleaning.

  • Low noise operation
    Designed to run quietly in the background so it does not disturb your recovery, sauna or garden time.

  • Complete accessory kit
    Includes filter element, hoses and fittings so you can get set up quickly without sourcing extra parts.

  • Easy to install and use
    Connect the hoses between the pump and your plunge, plug into a nearby socket, bleed the air from the chamber and you are ready to go.

Important information

This is a filter only system. It does not chill the water.

Best suited to users who are relying on natural outdoor temperatures or ice to cool their PortaPlunge.

This is a prototype product, so specifications and appearance may change slightly in future production runs.

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  • Your PortaPlunge CUBE
  • Carry bag
  • Water thermometer
  • Stirrup pump
  • Reusable ice brick
  • Repair kit
  • Under-plunge matting
  • Quick-start guide
Shell & Walls: Premium drop-stitch PVC, 8 cm thick for rigidity
Seams: Heat-sealed (not glued) for long-term durability
Floor: 0.5 mm EVA soft pad for comfort and grip
Exterior Colour: Light grey for year-round practicality and heat resistance
Structure: High-density drop-stitch core for stable, lasting form
Plunge (Erected)
Width: 90 cm
Length: 90 cm
Depth/Height: 90 cm
Capacity: 300 L
Weight: ≈ 13 kg
Total setup time: Under 15 minutes from car to cold
No tools required: All components included in the carry bag
Just add water and ice: Fill, chill, and plunge
Guides provided: Step-by-step written and video tutorials included
Delivery: 3–7 working days via DHL with date selection
Returns: 30-day window from delivery if unused and in original packaging
Return collection: Optional pickup; fee deducted from refund
Refund timing: Processed within 5–7 working days after inspection
Full policy: See our Returns page
Best suited for: Home gardens, patios, balconies, compact outdoor spaces
Shape: Square (CUBE design for solo use in tight areas)
Dimensions: 90 cm x 90 cm x 90 cm
Capacity: 300 L
Material: 8 cm drop-stitched, heat-sealed premium PVC
Setup time: Under 5 minutes
Weight: Approx. 13 kg
Packed size: Compact and car boot–friendly

Meet the Community

When you buy a PortaPlunge, you’re not just getting a plunge – you’re joining a warm, welcoming community of sauna and plunge lovers.

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Frequently Asked Questions 

For any additional queries, contact us at 02392 984 667or hello@portasauna.co.uk.

Our customer support is available Monday to Friday: 8am-8:30pm.Average answer time: 24h

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