LifeSaver Cube review (UK) When it comes to survival, water isn’t optional — it’s essential. One of the biggest challenges for any prepper is finding a portable, reliable way to secure clean drinking water when it matters most.
The LifeSaver Cube water purifier (UK) is designed to do exactly that. Compact, durable, and easy to use, it provides up to 5,000 litres of safe drinking water — ideal for emergencies, camping, or everyday prepping.
In this detailed LifeSaver Cube review, we’ll explore its setup, performance, maintenance, and how it compares with other purifiers so you can decide if it deserves a spot in your survival kit.
🌊 Why the LifeSaver Cube Matters for Preppers
Clean water is the foundation of survival. In the UK, floods, power cuts, or supply chain issues can disrupt access to safe water in minutes.
The LifeSaver Cube offers peace of mind — a compact, self-contained filtration system that removes 99.99% of bacteria, viruses, and cysts, even from natural water sources.
For urban preppers, campers, or off-grid families, this purifier bridges the gap between preparedness and practicality.
⚙️ Ease of Use and Setup
🧰 Quick Setup Process
Setting up the LifeSaver Cube is refreshingly simple — no tools, no electricity, no fuss:
Unpack the Cube – Inside you’ll find the main unit, filter cartridge, and user manual.
Insert the filter – Press the filter into the slot until it clicks securely into place.
Fill with water – Unscrew the cap and fill from any source (river, rain barrel, or tap).
Prime the filter – Pump the handle a few times to push water through and remove air bubbles.
Dispense and drink – Attach the spout and enjoy safe, clean water immediately.
💡 Pro Tip: Always prime the filter before first use to ensure optimal flow and filtration.
🧼 Maintenance and Longevity
The LifeSaver Cube requires little upkeep — perfect for long-term storage and reliability.
Regular Cleaning: Release pressure after each use by unscrewing the pump slowly.
Filter Lifespan: Each cartridge lasts up to 5,000 litres; replace when flow slows noticeably.
Proper Storage: Keep at least 1 inch of water inside when storing to prevent membrane drying.
🔧 Simple, low-maintenance design = maximum reliability when you need it most.
⚖️ LifeSaver Cube vs Competitors
🧩 LifeSaver Cube vs LifeSaver Jerrycan
| Feature | LifeSaver Cube | LifeSaver Jerrycan |
|---|---|---|
| Capacity | 5 L | 18.5 L |
| Filter Life | 5,000 L | 20,000 L |
| Portability | Compact & lightweight | Bulkier, suited for base camps |
| Ideal For | Personal / small group use | Families & long-term storage |
| Build Quality | Rugged polymer | Same durable construction |
Verdict: The Cube is ideal for solo preppers or couples who need portability. The Jerrycan suits larger families or vehicle-based setups.
Similarities:
- Filtration Quality: Both the Cube and the Jerrycan remove 99.99% of bacteria, cysts, and viruses, ensuring you get safe drinking water.
- Ease of Use: Both models feature an easy-to-use pump mechanism. Simply fill up with water, pump a few times, and you have purified water on tap.
- Build Quality: LifeSaver products are known for their rugged build, and both models are made from durable materials designed to withstand harsh conditions.
Differences:
- Capacity: The LifeSaver Cube can hold up to 5 liters of water, whereas the LifeSaver Jerrycan holds a substantial 18.5 liters. This makes the Jerrycan more suitable for larger groups or longer trips.
- Portability: The Cube is compact and lightweight, ideal for personal use or small groups. The Jerrycan, however, is bulkier and more suited for base camps or vehicle-based adventures.
- Design: The Cube is designed for simplicity and ease of transport. The Jerrycan, on the other hand, offers a high-capacity solution but is larger and heavier, reflecting its higher capacity.
💧 LifeSaver Cube vs Other Portable Water Filters
The market is full of straws, bottles, and pump purifiers — but few combine capacity, durability, and simplicity like the Cube.
Advantages:
✅ High filtration efficiency — removes viruses, bacteria, and cysts to 99.99%.
✅ No chemicals or electricity needed — purely mechanical filtration.
✅ Rugged build — designed to withstand harsh conditions and rough handling.
✅ High volume output — up to 5,000 L before replacement.
- Sawyer Products Mini Water Filtration System: This is a popular choice due to its compact size and affordability. However, it only filters up to 100,000 gallons and lacks the robust build of the Cube. Also, it doesn’t remove viruses, which the Cube does efficiently.
- Grayl Ultralight Water Purifier: While the Grayl is another strong contender with its fast purification speed and compact size, it only filters up to 40 gallons before needing a new cartridge. The LifeSaver Cube, with its 5,000-liter capacity, offers a much longer lifespan.
- Katadyn Hiker Pro: Known for its reliability and ease of use, the Katadyn Hiker Pro is a great backpacking water filter. However, it doesn’t offer the same level of virus protection as the LifeSaver Cube.
- In conclusion, while each portable water purifier has its unique strengths, the LifeSaver Cube stands out for its combination of high-capacity filtration, ease of use, and robust construction. Whether you’re prepping for emergencies or planning an outdoor adventure, the Cube offers a reliable and superior solution.
🏕️ For UK preppers seeking reliability over gimmicks, the Cube is the clear winner.
🔍 Key Features and Benefits
💧 5,000 L filtration capacity – long-term use for emergencies or expeditions.
🧰 Simple pump system – delivers clean water on demand.
🔋 No batteries or chemicals – dependable in any environment.
🪶 Compact design – easy to store in bug-out bags or vehicles.
🛡️ Proven safety – filters out bacteria, viruses, and protozoa to international standards.
💬 Final Verdict
After testing and reviewing the LifeSaver Cube, it’s clear that this purifier offers exceptional value for UK preppers.
It delivers reliability, ease of use, and serious capacity — all in a compact package.
⭐ Key Takeaways
Filtration: Up to 5,000 L of clean water per filter.
Portability: Compact enough for grab-and-go situations.
Durability: Built to last through years of storage and use.
Usability: No complex setup or tools required.
✅ The LifeSaver Cube is a must-have for any serious prepper, camper, or emergency planner in the UK.
🔗 Where to Buy
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❓ FAQ – LifeSaver Cube Review (UK)
Q: How long does the LifeSaver Cube filter last?
A: Each filter lasts up to 5,000 L depending on water quality and usage.
Q: Is the LifeSaver Cube suitable for UK prepping?
A: Yes — it’s perfect for UK emergencies, camping, or off-grid homes.
Q: Does it remove viruses and chemicals?
A: It removes bacteria, cysts, and viruses. It does not remove dissolved salts or heavy metals.
Q: How do I know when to replace the filter?
A: If water flow slows significantly despite cleaning, it’s time for a new cartridge.
