🤖 Zodiac CNX 25 Robotic Pool Cleaner – Effortless Cleaning for Floor, Walls & Waterline
Cyclonic suction, smart navigation and dual-stage filtration for spotless pools up to 10 × 5 metres
📋 Product Overview
The Zodiac CNX 25 is a powerful and reliable robotic pool cleaner designed to transform pool maintenance into an effortless experience. Built with patented cyclonic suction technology and equipped with dual-stage filtration, it ensures efficient cleaning of the floor, walls, and waterline – all without any connection to your filtration system.
With its embedded smart motion sensors and unique design, the CNX 25 offers exceptional pool coverage and limitless agility. It adapts to different pool shapes and surfaces, making it ideal for all types of residential pools up to 10 × 5 metres.
The top-access filter with transparent window offers real daily ease of use – simply lift the lid to inspect and empty the large 4-litre filter canister. The quick water drainage system makes the robot lighter when removing it from the pool, whilst the automatic motor shut-off protects the unit when lifted from water.
As an autonomous electric cleaner, the CNX 25 operates independently from your pool’s filtration system, collecting debris directly in its own filter. Simply plug in and clean – no app or Wi-Fi setup required. With its 3-year warranty and robust construction, it’s the perfect choice for homeowners seeking reliable, automated pool cleaning.
⭐ Key Features
✅ Cyclonic Suction Performance – Patented technology keeps debris suspended inside the filter, preventing blockages and maintaining strong suction power
✅ Dual-Stage Progressive Filtration – 150µm standard filter plus 60µm fine filter collects debris efficiently, even the smallest particles
✅ Complete Pool Coverage – Cleans floor, walls, and waterline for total pool hygiene
✅ Smart Navigation – Embedded intelligent sensors optimise movement and adapt to different pool shapes and surfaces
✅ Large 4L Filter Capacity – Extended cleaning sessions with fewer interruptions
✅ Top-Access Filter – Easy to empty and clean without turning the unit over
✅ Transparent Filter Window – Quick visual inspection of debris collection
✅ Quick Water Drainage – Lighter and easier to remove from pool after cleaning
✅ Dual Caterpillar Tracks – Excellent grip on all pool surfaces including liner, tile, and fibreglass
✅ Wide 23cm Suction Inlet – Efficient debris collection across the cleaning path
✅ 15m Cable Length – Wide mobility for most residential pools
✅ Energy Efficient – Low 150W power consumption
✅ Auto Safety Shut-Off – Motor protection when removed from water
✅ 3-Year Warranty – Peace of mind with extended coverage
🔧 Technical Specifications
| Specification | Value |
|---|---|
| Pool Type | In-ground & above-ground (rigid walls) |
| Maximum Pool Size | 10 × 5 m |
| Maximum Operating Depth | 4 m |
| Cleaning Zones | Floor, walls, waterline |
| Cleaning Cycles | 2 preset cycles |
| Number of Motors | 3 (2 traction + 1 suction) |
| Suction Inlet Width | 23 cm (230 mm) |
| Suction Flow Rate | 16 m³/h |
| Filter Type | Dual-stage progressive (150µm + 60µm) |
| Filter Surface Area | 1,066 cm² |
| Filter Capacity | 4 litres |
| Drive System | Dual caterpillar tracks |
| Transmission | Gears |
| Cable Length | 15 m |
| Cleaner Dimensions (W×D×H) | 43 × 40 × 30 cm |
| Cleaner Weight | 8 kg (without cable) |
| Package Dimensions (L×W×H) | 56 × 56 × 38 cm |
| Packaged Weight | 14 kg |
| Control Box Input | 220-240V AC, 50/60Hz, Class II |
| Cleaner Voltage | 30V DC |
| Maximum Power Input | 150 W |
| Protection Rating | Control box: IPX5 / Cleaner: IPX8 |
| Navigation | Smart motion sensors |
| Safety Features | Beach system, out-of-water safety, electronic motor protection |
| Warranty | 3 years |
⚡ Electrical Requirements
| Electrical Specification | Requirement |
|---|---|
| Control Box Input Voltage | 220-240V AC |
| Frequency | 50/60 Hz |
| Cleaner Operating Voltage | 30V DC (via control box) |
| Maximum Power Consumption | 150 W |
| Insulation Class | Class II (double insulation) |
| Control Box Protection | IPX5 |
| Cleaner Protection | IPX8 |
⚠️ IMPORTANT SAFETY NOTICE:
The power supply must be protected by a dedicated 30mA Residual
Current Device (RCD), complying with UK wiring regulations (BS 7671).
Do not use any extension lead - connect the control box directly
to a suitable power outlet at least 3.5 metres from the pool edge.
Keep the control box away from direct sunlight and in a
non-floodable area.
🌀 Cyclonic Suction Technology
How It Works
Zodiac’s patented cyclonic suction technology is the heart of the CNX 25’s cleaning performance. Unlike conventional pool cleaners that can lose suction as the filter fills, cyclonic action keeps debris suspended inside the filter canister, preventing blockages and maintaining consistent, powerful suction throughout the entire cleaning cycle.
The Cyclonic Advantage
| Feature | Benefit |
|---|---|
| 🌀 Debris Suspension | Keeps particles moving to prevent filter clogging |
| 💪 Consistent Suction | Maintains strong cleaning power throughout cycle |
| 🧹 Efficient Collection | Captures more debris per cleaning session |
| ⏱️ Longer Cycles | Extended cleaning without interruption |
💧 Dual-Stage Progressive Filtration
The CNX 25 comes equipped with a sophisticated dual-stage filtration system that captures debris of all sizes:
| Filter Stage | Mesh Size | Captures |
|---|---|---|
| Standard Filter | 150 µm | Leaves, twigs, insects, large debris |
| Fine Filter | 60 µm | Sand, dust, pollen, fine particles |
Filter Specifications
| Specification | Value |
|---|---|
| Total Filter Capacity | 4 litres |
| Filter Surface Area | 1,066 cm² |
| Access Type | Top-access with transparent lid |
| Inspection | Visual through transparent window |
💡 Tip: For heavily soiled pools, run several cycles with just the 150µm filter first to remove larger debris before fitting the fine 60µm filter.
🔄 Cleaning Cycles
The CNX 25 offers two preset cleaning programmes to suit your needs:
| Cycle | Coverage | Description |
|---|---|---|
| Floor Only | Pool floor | Quick clean focusing on bottom debris |
| Full Cycle | Floor + Walls + Waterline | Complete pool cleaning |
Simple Operation
The CNX 25 is designed for plug-and-play convenience:
- Roll out the 15m cable alongside the pool
- Immerse the cleaner vertically and release air bubbles
- Connect the floating cable to the control box
- Plug into mains power (30mA RCD protected)
- Select your cleaning cycle and press start
No app, no Wi-Fi, no complicated setup – just simple, effective pool cleaning.
🏊 Pool Compatibility
Suitable Pool Types
| Pool Type | Compatibility |
|---|---|
| In-Ground Pools | ✅ Excellent |
| Above-Ground Pools | ✅ With rigid walls |
| Liner Pools | ✅ All liners |
| Tiled Pools | ✅ All tiles |
| Fibreglass Pools | ✅ Excellent |
| Concrete Pools | ✅ Excellent |
| Painted Pools | ✅ Compatible |
Pool Shape & Size
| Specification | Requirement |
|---|---|
| Maximum Size | 10 × 5 metres |
| Maximum Depth | 4 metres |
| Pool Shapes | All shapes |
| Wall Type | Rigid walls only |
💦 Water Requirements
For optimal performance, maintain these water parameters:
| Parameter | Required Range |
|---|---|
| Water Temperature | 10°C to 35°C |
| pH Level | 6.8 to 7.6 |
| Free Chlorine | Less than 3 mg/L |
⚠️ Important: Do not use the cleaner during shock chlorination treatment.
🛠️ Maintenance Guide
After Each Use
| Task | Action |
|---|---|
| Empty Filter | Remove and rinse filter canister with clean water |
| Inspect Debris | Check transparent window before removing from pool |
| Drain Water | Allow water to drain before lifting out |
| Untangle Cable | Lay out in sun to return to original shape |
| Rinse Cleaner | Clean with fresh water |
| Store Properly | Keep away from sunlight and humidity |
Monthly Maintenance
| Task | Frequency |
|---|---|
| Deep clean filter | Monthly |
| Inspect tracks | Monthly |
| Check brushes | Monthly |
| Clean impeller | As needed |
Annual Maintenance
| Task | Notes |
|---|---|
| Descale filter | Use acidic solution (spirit vinegar) |
| Inspect tracks | Replace when wear indicator reached |
| Check brushes | Replace every 2 years |
| Replace filter | Replace every 2 years |
🛡️ Safety Features
The CNX 25 includes multiple safety systems:
| Safety Feature | Function |
|---|---|
| Beach System | Prevents cleaner getting stuck on shallow slopes |
| Out-of-Water Safety | Automatic motor shut-off when removed from pool |
| Electronic Motor Protection | Prevents overload damage |
| Class II Insulation | Double insulation – no earth connection required |
| IPX8 Cleaner Rating | Fully waterproof for submersion |
| IPX5 Control Box | Protected against water jets |
❓ Frequently Asked Questions
Q: What size pool can the CNX 25 clean? A: The CNX 25 is designed for pools up to 10 × 5 metres with a maximum depth of 4 metres.
Q: Does it clean the walls and waterline? A: Yes, the CNX 25 cleans the floor, walls, and waterline. You can also select a floor-only cycle for quick cleans.
Q: Does it need to connect to my pool pump? A: No, the CNX 25 is a fully autonomous electric robot. It operates independently and collects debris in its own filter canister.
Q: How long is the cable? A: The cable is 15 metres long, providing ample reach for most residential pools.
Q: What type of debris can it collect? A: The dual-stage filtration (150µm + 60µm) captures everything from leaves and twigs to fine sand and dust particles.
Q: How do I empty the filter? A: Simply open the top-access lid and lift out the filter canister. The transparent window lets you see when it needs emptying.
Q: Can I use it with an above-ground pool? A: Yes, the CNX 25 works with above-ground pools that have rigid walls.
Q: What surfaces can it clean? A: It’s suitable for all pool surfaces including liner, tiles, fibreglass, concrete, and painted finishes.
Q: Does it have an app? A: No, the CNX 25 uses simple push-button controls – no app or Wi-Fi required. Just plug in and clean.
Q: What is the power consumption? A: The CNX 25 uses only 150W – very energy efficient for a robotic pool cleaner.
Q: What warranty is included? A: The CNX 25 comes with a 3-year manufacturer warranty.
📥 Downloads & Resources
📄 Product Leaflet – Key features and specifications
📄 Quick Start Guide – Getting started
📄 User Manual – Complete operating instructions
📄 Warranty Information – Warranty terms and conditions
🏆 Why Choose Zodiac CNX 25
| Advantage | Benefit To You |
|---|---|
| 🌀 Cyclonic Suction | Consistent powerful cleaning throughout the cycle |
| 🔄 Dual-Stage Filtration | Captures debris from leaves to fine dust |
| 🏊 Floor, Walls & Waterline | Complete pool coverage in one cycle |
| 🧠 Smart Navigation | Adapts to any pool shape for optimal coverage |
| 📦 4L Filter Capacity | Extended cleaning without interruption |
| 👆 Top-Access Filter | Easy emptying without flipping the unit |
| 🔌 Plug & Play | No app, no Wi-Fi – just simple operation |
| ⚡ 150W Energy Efficient | Low running costs |
| 🛡️ 3-Year Warranty | Peace of mind from Zodiac |
| 🏷️ Fluidra Quality | Backed by a global pool equipment leader |
📦 What’s Included
- CNX 25 Robotic Cleaner
- Control Box with Base
- 15m Floating Cable with Swivel
- Dual-Stage Filter Canister (150µm + 60µm)
- Quick Start Guide
- User Manual
- Warranty Documentation
Available Accessories (Optional)
| Accessory | Description |
|---|---|
| Simple Filter 100µm | Alternative standard filtration |
| Simple Filter 200µm | For larger debris only |
| Transport Trolley | Easy storage and transport |
| Protective Cover | Protects from sun and weather |
🤝 Why Buy from Parts4Tubs
✅ UK-Based Expertise – Local support from pool and spa specialists
✅ Fast UK Delivery – Quick dispatch to get your cleaner in the water sooner
✅ Technical Advice – Knowledgeable team for compatibility and operation questions
✅ Competitive Pricing – Great value on genuine Zodiac products
✅ Full Product Support – We stand behind every product we sell
✅ In Stock – Ready for immediate dispatch
✨ Summary
The Zodiac CNX 25 is a high-performance robotic pool cleaner designed for residential pools up to 10 × 5 metres. Featuring patented cyclonic suction technology and dual-stage filtration (150µm + 60µm), it delivers efficient cleaning of the floor, walls, and waterline with consistent, powerful performance.
With 3 motors, smart navigation sensors, and dual caterpillar tracks, the CNX 25 adapts to all pool shapes and surfaces including liner, tile, fibreglass, and concrete. The generous 4-litre filter capacity and top-access design with transparent window make maintenance quick and easy.
Simply plug and play – no app or Wi-Fi required. The 15-metre cable provides excellent reach, whilst the 150W energy-efficient motor keeps running costs low. Built with multiple safety features including automatic out-of-water shut-off and backed by a 3-year warranty, the CNX 25 offers reliable, hassle-free pool cleaning season after season.
Order today and enjoy effortless pool maintenance with Zodiac quality.





