Kontrol Refill Moisture Krystals (2.5KG Fresh Linen Scent) image 1 Kontrol Refill Moisture Krystals (2.5KG Fresh Linen Scent) image 2 Kontrol Refill Moisture Krystals (2.5KG Fresh Linen Scent) image 3 Kontrol Refill Moisture Krystals (2.5KG Fresh Linen Scent) image 4 Kontrol Refill Moisture Krystals (2.5KG Fresh Linen Scent) image 5

Kontrol Refill Moisture Krystals (2.5KG Fresh Linen Scent)

£7.08(inc VAT) £8.99
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  Product Description
Kontrol Refill Moisture Krystals offer a practical solution for caravan and motorhome owners battling condensation and damp. This 2.5kg bag contains calcium chloride crystals that pull excess moisture from the air, absorbing up to five litres over a six to eight week period. The fresh linen scent adds a pleasant fragrance while the crystals work, helping you maintain a dry environment in your touring vehicle or awning. The resealable bag means you can top up your Kontrol moisture traps as needed without wasting crystals.

These hygroscopic flakes work silently without electricity or batteries, making them ideal for off-grid camping and storage situations. Compatible with Kontrol's Streamline and Mega Moisture traps, the refill system saves you buying complete units each time. Motorhomers and caravan owners often use these during winter storage or in humid coastal locations where condensation becomes a real problem. The crystals start working straight away to prevent mould growth, musty smells and the damp stains that can damage soft furnishings.

The main limitation is that you need to monitor the collection container regularly during humid conditions, as the absorbed moisture needs emptying before it overflows. How quickly the crystals saturate depends on temperature and humidity levels in your van. Each 500g of crystals typically absorbs around one litre of water, so the 2.5kg bag gives you multiple refills for your moisture trap. This refill option works out more cost-effective than repeatedly buying new complete moisture traps.

Kontrol Refill Moisture Krystals (2.5KG Fresh Linen Scent) Features


  • 2.5kg resealable bag
  • Attracts and removes moisture from the air
  • Helps prevent damp, mould and mildew
  • Absorbs up to two litres of moistur
  • Effective for six to eight weeks
  • For use with Streamline and Mega Moisture traps
  • Fresh linen scent

Frequently Asked Questions

How long do Kontrol Moisture Krystals last in a caravan?
The 2.5kg bag of Kontrol Krystals typically lasts six to eight weeks in standard conditions. Duration varies based on temperature, humidity levels and ventilation in your caravan or motorhome. In particularly damp environments or during winter storage, the crystals may saturate faster. Each 500g of crystals absorbs approximately one litre of moisture before needing replacement.
Which Kontrol moisture traps work with these refill crystals?
These refill crystals are compatible with Kontrol Streamline and Mega Moisture traps. The resealable 2.5kg bag lets you pour the right amount for your specific trap model. Both trap designs feature a collection container that catches the liquid as the calcium chloride crystals absorb moisture from the air. Check your existing moisture trap to confirm compatibility before purchasing refills.
Do moisture absorbing crystals work without electricity in caravans?
Kontrol Moisture Krystals work entirely without electricity or batteries through a natural chemical process. The calcium chloride flakes are hygroscopic, meaning they attract and bind water molecules from the surrounding air. This makes them ideal for winter caravan storage, off-grid camping situations and during transit when electrical dehumidifiers cannot run. The process operates silently and starts working immediately once you place the crystals in your moisture trap.
How much moisture can 2.5kg of Kontrol Krystals absorb?
The 2.5kg bag of Kontrol Krystals absorbs approximately five litres of moisture from the air. The absorption rate follows a ratio where 500g of crystals typically absorbs around one litre of water. The collected moisture appears as liquid in your trap's container, which you need to empty periodically. Absorption speed depends on ambient humidity levels, temperature and air circulation in your caravan or motorhome.
What happens to moisture absorber crystals after they're saturated?
Once Kontrol Krystals have absorbed their maximum moisture capacity, they dissolve into a liquid solution of calcium chloride and water in your trap's collection container. You empty this liquid and replace the crystals with fresh ones from your refill bag. The saturated solution should be disposed of responsibly down a drain with plenty of water. The crystals cannot be reused once dissolved, which is why the 2.5kg refill bag provides multiple top-ups for ongoing moisture control.
Will fresh linen scented crystals eliminate caravan musty smells?
The fresh linen scent in these Kontrol Krystals helps mask existing musty odours while the crystals tackle the underlying cause by removing excess moisture. Musty smells in caravans and motorhomes come from mould and mildew growth, which needs damp conditions. By reducing humidity levels, the crystals prevent new mould development that causes these odours. The light fragrance provides immediate improvement, but the real benefit comes from creating a drier environment that stops odour-causing problems at their source.
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If you’ve changed your mind about keeping your purchase, please return it in its original condition with proof of purchase and we’ll exchange or refund it. Unless faulty, this should be within 100 days of receiving your order. By original condition, we’d expect this to mean that you’ve kept packaging and labels, and that the item is undamaged and unused.

For further information of how to return your item, please visit the "Returning an Unwanted/Faulty/Damaged Item" section on our Help Page.
  Did you know we have been established and have been in the caravan and motorhome industry for over 50 years?

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