These refill tabs work with Kontrol Aqua Trap and Mega Moisture Trap units, providing a straightforward way to keep tackling damp in your caravan, motorhome, or home. Each 450g compressed calcium chloride tab absorbs moisture from the air through a hygroscopic process, pulling in up to twice its weight in water. You'll find them particularly useful during winter storage when condensation becomes a problem in unheated leisure vehicles, though they perform equally well in wardrobes, cupboards, or any space prone to mustiness.
The contactless refill system means you drop the tab into your trap without handling it directly, which keeps things clean and simple. A single tab covers around 15 square metres and can absorb roughly one litre of moisture, whilst pairing two tabs in the Mega Moisture Trap extends coverage to 30 square metres. Depending on humidity levels in your environment, each tab typically lasts between six and eight weeks, though this can stretch to three months in drier conditions.
These tabs fit all standard moisture traps on the market, not just Kontrol's own units. The compressed desiccant format produces no dust when you install it, and the chemical process locks captured moisture into your trap's reservoir rather than releasing it back into the air. Worth noting that you'll need to check the reservoir periodically and empty it before it reaches capacity, particularly in high-humidity environments like poorly ventilated storage areas.
Kontrol Aqua Trap Refill Tabz (450g) Features
- Absorbs up to 1 litre of moisture per 450g tab
- Contactless refill system for clean, hands-free installation
- Universal fit for all standard moisture traps and brands
- Dust-free compressed calcium chloride desiccant formula
- Works effectively at low temperatures typical in UK climate
Specifications
- Weight : 450g compressed desiccant tablet
- Coverage : Up to 15 square metres per single tab
- Capacity : Absorbs up to 1 litre (double its weight)
- Duration : Lasts 6-8 weeks depending on humidity levels
- Compatibility : Fits Kontrol Aqua Trap and Mega Moisture Trap
Frequently Asked Questions
Each 450g tab typically lasts between six and eight weeks in average humidity conditions, though duration varies significantly based on your environment. In caravans or motorhomes stored over winter with high moisture levels, tabs may need replacing every six weeks. Conversely, in drier home environments or during summer months, the same tab can last up to three months. You'll know it's time to replace when the tab has fully dissolved and the reservoir is filling with collected water.
Kontrol Refill Tabz are designed with universal compatibility and work effectively in all proprietary moisture traps available on the market, including those advertised on television. The circular compressed format fits standard trap openings, and the contactless system means you simply drop the tab into the unit without modification. Whilst specifically designed for Kontrol Aqua Trap and Mega Moisture Trap units, the 450g tabs function in comparable moisture trap designs from other manufacturers.
Each 450g compressed calcium chloride tab absorbs up to twice its weight in moisture from the atmosphere, which equates to approximately 900ml to one litre of water per tab. The calcium chloride desiccant attracts water molecules from the air through a hygroscopic chemical process, locking the moisture into liquid form in your trap's reservoir. Absorption capacity depends on relative humidity levels in the space, with higher humidity environments enabling the tab to reach its full potential more quickly.
A single 450g Kontrol tab effectively covers up to 15 square metres, which suits most caravan living areas, small bedrooms, or storage cupboards. When using two tabs together in the Kontrol Mega Moisture Trap, coverage extends to 30 square metres. Coverage effectiveness depends on factors including room ventilation, temperature, and existing humidity levels. For optimal results in larger caravans or motorhomes, consider placing multiple traps with single tabs in different areas rather than relying on one unit to cover the entire space.
Calcium chloride moisture absorbers are safe when used according to packaging instructions, but require sensible placement away from curious children and pets. The chemical itself is an irritant if touched or ingested, and the collected liquid in the reservoir should not be handled directly or consumed. Place your moisture trap on a stable, elevated surface where it cannot be knocked over or accessed by young children or animals. The contactless refill system minimises direct handling during tab replacement, though you should still keep replacement tabs stored securely in their original packaging until needed.
Desiccant-based moisture absorbers like Kontrol tabs work effectively at low temperatures, making them particularly suitable for caravan and motorhome winter storage in the UK. Unlike electric compressor dehumidifiers that struggle below 20 degrees Celsius, calcium chloride desiccant continues attracting moisture even in unheated spaces. This chemical absorption process functions independently of ambient temperature, though absorption rate may slow slightly in very cold conditions. The tabs remain the most practical moisture control option for leisure vehicles stored without mains electricity during winter months.
Kontrol tabs cannot be refilled or reused once they have dissolved and absorbed their capacity of moisture. The calcium chloride desiccant undergoes a chemical transformation as it absorbs water from the air, converting from solid compressed form into liquid brine solution that collects in the trap reservoir. Once the tab has fully dissolved, you must dispose of the collected liquid safely down an outside drain and install a fresh replacement tab. The moisture trap unit itself is reusable indefinitely with replacement tabs.
Both scented and scent-free Kontrol tabs contain the same 450g of compressed calcium chloride desiccant and absorb identical amounts of moisture. Scented variants release a subtle fragrance as they work, which can help mask musty odours whilst the tab tackles underlying dampness. Scent-free tabs provide pure moisture absorption without added fragrance, making them preferable for anyone sensitive to scents or for use in food storage areas. The dehumidifying performance and coverage area remain consistent across both options, so choice comes down to personal preference regarding fragrance.
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