Premium Sand Filter for Wood-Fired Hot Tubs

Engineered with a deep understanding of user needs, aiming for maximum convenience and functionality

Ultimate Three Step Filtration System

Effortless Maintenance

Energy Saving with Individual Controls

3kW Heater for Year-Round Use

Ultimate Three Step Filtration System

Effortless Maintenance

Energy Saving with Individual Controls

3kW Heater for Year-Round Use

Two Filter Box Options — Square or Round

At Gardenvity, we offer two Premium Filter Box options — both designed for simple maintenance, long-lasting performance, and effortless cleaning:

Square Filter Box — a classic, angular design that opens both from the top and the side, ensuring easy access to all components.

Round Filter Box — our latest design, echoing the traditional curved shape of a hot tub. Opens from the top, with all components easily reachable thanks to its smart and smooth layout.

This filter has all the needed components for easy use and maintaining crystal-clear water

Component Overview

Sand filter

Efficiently traps debris, maintaining water quality and reducing the need for frequent changes. The filter keeps the water clean for at least 2 months without changing it and circulates the entire water volume through filtration 4 times per hour.

Blue Lagoon UV-C lamp

Disinfects water using ultraviolet light to eliminate bacteria, viruses, and algae.

3 kW Electric Heater, 220 V (Premium feature)

Prevents the hot tub from freezing even in lower temperatures, ensuring uninterrupted use during colder seasons.

Prefilter (Premium feature)

The prefilter catches debris before it even reaches the main filter, enhancing filter efficiency, reducing maintenance, and minimizing the need to wash the filter’s cotton balls.

Independent controls (Premium feature)

Tailored settings for each component, ensuring convenient, customized operation while extending the lifespan of the UV-C lamp.

* Note: Even with a UV-C system, water treatment is still required—just with reduced chemical usage.

Wood-fired hot tub with wooden stairs on a white background

Launch Offer | Verta™ Stove | Wood Fired Hot Tub with Premium Filter

Illustration of a wood fired hot tubwith labeled sections for air, hydro, and LED on a light green background.

Diagram of a wood fired hot tub's interior with labeled parts on a light green background

Color swatch wheel with metallic grey, metallic gold, and pearlescent white shades on a light green background.

Advertisement for premium water filter with text and images of filter balls and filtration system.

UV-C technology graphic for hot tubs with glowing UV-C lamp and inset close-up of hand holding pre-filter cover, highlighting eco-friendly water disinfection and extended filter lifespan.

Close-up of hybrid hot tub heater control unit with temperature dial, illustrating electric heater maintaining water temperature after wood stove heating for consistent outdoor spa comfort.

Launch Offer | Verta™ Stove | Wood Fired Hot Tub with Premium Filter

All-inclusive hot tub with a acrylic insert and Premium filtration. This configuration includes:

4-6-seater hot tub with insert made of acrylic (select the colour of the insert below) (£ 2568)
ThermoWood cladding. Color: light stain (£ 450)
Integrated heater (stainless steel AISI 316) with chimney flue, 2 m (6’6”) (£ 900)
Insulated faux-leather cover (£ 450)
Thermal insulation (£ 150)
Hose connectors (£ 20)

Chimney parts

Chimney protection & heat shield for the connection transition (£ 145)
Chimney cap with ash catcher (£ 40)

SPA and LEDs

Air jet massage system, 12 jets, 0.7 kW (£ 550)
Hydro-massage system, 16 jets, 1,1 kW (£ 780)
11 mini multi-colored underwater LED (£ 250)

Water filtration and disinfection

Premium Sand Filter: Fibre-ball filtration system & filter box, Blue Lagoon UV-C water sterilisation system, 3 kW electric heater (£ 1800)

Accesories

Tightening bands (£ 110)
Curbside delivery in mainland England (additional charges apply for Scotland)
Curved steps (£ 278)

Learn more about:

Premium Sand Filter Advanced Hot Tub Shelf (optional)

6.553,00 €

8.191,00 €

Learn more

Shipping costs are included.

User-Friendly Design

Hassle-free prefilter cleaning:

Easy, quick and convenient access to the pre-filter to empty the container of collected debris.

Easy reach dial:

Conveniently reach and control the water temperature with no effort.

Convenient access to components:

Easily turn components on or off as needed.

Premium components

Prefilter

The prefilter is easy to clean, ensuring minimal effort for maximum performance.

3 kW Electric Heater, 220 V

The heater is easily visible and conveniently placed right inside the filter box.

Independent controls

Each control is numbered for easy identification, with an instruction guide conveniently placed on the door.

Prefilter

The prefilter is easy to clean, ensuring minimal effort for maximum performance.

3 kW Electric Heater, 220 V

The heater is easily visible and conveniently placed right inside the filter box.

Independent controls

Each control is numbered for easy identification, with an instruction guide conveniently placed on the door.

Premium Sand Filter Square Wood Fired Hot Tub | Optimal Configuration

Premium water filter system with pet filter balls and pump components.

Premium Sand Filter Square Wood Fired Hot Tub | Optimal Configuration

All-inclusive hot tub with a metallic grey acrylic insert and filtration. This configuration includes:

4-6-seater hot tub with insert made of acrylic (£ 3235)
ThermoWood cladding. Color: light stain (£ 450)
Integrated heater (stainless steel AISI 316) with chimney flue, 2 m (6’6”) (£ 700)
Insulated faux-leather cover (£ 450)
Thermal insulation (£ 150)
Hose connectors (£ 20)

Chimney parts

Chimney protection & heat shield for the connection transition (£ 145)
Chimney cap with ash catcher (£ 40)

SPA and LEDs

Hydro-massage system, 16 jets, 1.1 kW (£ 800)
Air jet massage system, 11 jets, 0.7 kW (£ 550)
11 mini multi-colored underwater LED (£ 250)

Water filtration and disinfection

Premium Sand Filter: Fibre-ball filtration system & filter box, Blue Lagoon UV-C water sterilisation system, 3 kW electric heater ( £ 1800)

Accesories

Tightening bands (£ 110)
Curved steps (£ 278)
Curbside delivery in mainland England (additional charges apply for Scotland)

7.376,00 €

8.678,00 €

Learn more

Shipping costs are included.

Thoughtful Design – Every Detail Matters

High quality hinges

These hinges are designed for everyday use, providing reliable functionality.

Magnetic Attachments

Magnetic fittings keep the door securely closed, preventing it from opening even in strong winds.

Elevated Legs – Built for Stability and Durability

Elevated legs enhance stability and protect both the filter and the surface beneath it. By keeping the unit slightly raised, they help prevent damage to lawns, patios, or decking while ensuring proper airflow around the filter.

This design reduces moisture and wear exposure, protecting the wood. The filter maintains its durability, ensuring long-lasting performance with minimal upkeep.

Safe and Efficient Hot Tub Control System

Manage your hot tub’s water system with ease

Operate each component individually for the settings that suit your needs.

For added safety, built-in leakage relay protects against electrical leaks by cutting off power if any irregular current is detected, ensuring safe operation and preventing electrical hazards.

Premium Sand Filter Electrical Component Reference

Main devices:
1. Sand filter / pump

2. 3 kW electric water heater (if applicable)

3. Blue Lagoon UV-C (if applicable)

Safety devices:

4. Main filter box switch contactor

5. Earth leakage relay

*Note: The 3 kW heater is connected to the filter pump so that it can only be operated when the filter is running, which ensures optimum efficiency.

Always Know It’s Working with the Operation Indicator Light

Clear Operation Indicator

Stay confident that your filter is doing its job. The operation light shows when the filter is running, so you’ll never leave it on by accident. Save energy and keep control at all times.

Real-time Operation Monitoring:

The indicator light provides a clear, visible signal that shows when the filter is actively running, ensuring you’re always aware of its operation status.

Waterproof Feature:

This allows the filter to be used year – round regardless the season.

Deep-set button:

Prevents accidental pressing and unintended activation ensuring it’s only running when needed.

Dimensions specification

Curved side for seamless alignment with the hot tub

The rear side is designed with a gentle curve to ensure a seamless alignment with the contours of the hot tub, providing a smooth and integrated fit.

Dimensions to fit the standarts

The dimensions of the square filter box: 740 mm x 740 mm x 840 mm.

The dimensions of the round filter box: 910 mm x 690 mm x 720 mm.

Connecting filter to the hot tub

Remove attachments

Upon arrival, the hot tub attachments will be fastened to the hoses connected to the filter.
You’ll easily unscrew them.

!* Be careful not to lose small parts.

Attach components

After removing the attachments, carefully screw them onto the tub’s outlets. Make sure the gaskets stay in place to prevent leaks or misalignment. Handle with care to avoid losing any small components.

Connect the filter

Once the attachments are in place, simply screw the hose onto the filter to connect it to the hot tub.

!* Be careful not to lose small parts.

Remove attachments

Upon arrival, the hot tub attachments will be fastened to the hoses connected to the filter.
You’ll easily unscrew them.

!* Be careful not to lose small parts.

Attach components

Connect the filter

Once the attachments are in place, simply screw the hose onto the filter to connect it to the hot tub.

!* Be careful not to lose small parts.

Meticulously Tested for Guaranteed Quality

Thorough Testing for Reliable Performance

Every filter goes through a strict quality check before approval. We test filtration, functionality, and overall performance to ensure it meets the highest standards.

During the continuous filtration test, water is circulated to detect any leaks and confirm that each component works as intended. This ensures your filter is reliable from day one.

Gardenvity vs. Most Other Competitors – Key Sand Filter Benefits

GARDENVITY

OTHER BRANDS

Independent Controls

Attention to Detail

3 kW heater

Blue Lagoon UV-C lamp

Pre-filter

Operation Indicator Light

Easy Connection to Hot Tub

Legs of the filter

Testing

Some of them

GARDENVITY

OTHER BRANDS

Independent Controls

Attention to Detail

3 kW heater

Blue Lagoon UV-C lamp

Pre-filter

Operation Indicator Light

Easy Connection to Hot Tub

Legs of the filter

Testing

Some of them

Design Meets Choice – Square or Round Filter Box

At Gardenvity, we strive to lead the market by listening to your needs. That’s why we give you two design options:

Square Filter Box – a timeless classic that perfectly matches square tubs and also pairs beautifully with round ones.

Round Filter Box – seamlessly follows the soft oval lines of your hot tub, creating a modern look.

Premium Sand Filter Square Lounge Wood Fired Hot Tub | Optimal Configuration

Premium Sand Filter Square Lounge Wood Fired Hot Tub | Optimal Configuration

All-inclusive hot tub with a marble black acrylic insert and filtration. This configuration includes:

6-seater (5 seats and 1 laying position) hot tub with insert made of acrylic (£ 5350)
ThermoWood cladding. Color: light stain (£ 450)
Integrated heater (stainless steel AISI 316) with chimney flue, 2 m (6’6”) (£ 700)
Insulated faux-leather cover (£ 450)
Thermal insulation (£ 150)
Hose connectors (£ 20)

Chimney parts

Chimney protection & heat shield for the connection transition (£ 145)
Chimney cap with ash catcher (£ 40)

SPA and LEDs

Hydro-massage system, 16 jets, 1.1 kW (£ 800)
Air jet massage system, 11 jets, 0.7 kW (£ 500)
10 mini multi-colored underwater LEDs (£ 250)

Water filtration and disinfection

Premium Sand Filter: Fibre-ball filtration system & filter box, Blue Lagoon UV-C water sterilisation system, 3 kW electric heater (£ 1800)

Accesories

Square steps (£ 278)
Curbside delivery in mainland England (additional charges apply for Scotland )

Note: The tub is transported horizontally. Dimensions 235 x 230 x 130 cm. Weight about 400 kg. Please make sure you have several people to help you move the hot tub on the day of arrival.

9.038,00 €

10.633,00 €

Learn more

Shipping costs are included.

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Premium-Hot Tub: Nachhaltige Erholung zum besten Preis

In Premium-Badefässern sind alle Komponenten für hochwertige Entspannung bereits enthalten: Thermoholz, Einsätze aus Glasfaser oder Acryl, Sandfilter, Hydro- und Luftmassagesysteme, Beleuchtung sowie die wichtigsten Zubehörteile.