Best Crystal Water Filter Cartridges of 2025

The AQUAPHOR Replacement Filters are designed to ensure you enjoy clean and safe drinking water. The K3 filter effectively reduces impurities such as chlorine, lead, and bacteria, making your water taste fresher and healthier. For even finer purification, the K2 filter targets solid particles down to 3 microns, while the K7 filter removes particles as small as 0.8 microns in the final stage. You can easily replace these filters every 12 months, ensuring your water remains pure and enjoyable.

The Dafi Crystal Classic Filter is a stylish and space-saving water filter with a total volume of 2.0 litres, providing you with 1.0 litre of filtered water. Its intelligent filling lid makes it easy to use, ensuring you can refill it conveniently. The always-visible filter change reminder helps you maintain the best quality of your filtered water. With this filter, you will enjoy pure and tasty water, free from heavy metals, chlorine, and limescale, enhancing the taste of your drinks and food.

The Ultra Soft Water Crystals are high-quality food-grade polyphosphate crystals designed for use in drinking water systems. They effectively protect against limescale by adhering to hardness molecules like calcium and magnesium, preventing them from forming hard deposits. This cost-effective solution is widely used for limescale prevention, ensuring your appliances and plumbing remain in good condition. Available in both small and large pack sizes, these crystals cater to a variety of customer needs.

The Filtapac MK2 Water Filter is designed for caravans and motorhomes, ensuring you have access to clean, safe drinking water. It effectively removes impurities from your water supply, giving you peace of mind while travelling. With its reliable performance, you can enjoy fresh water without any unpleasant tastes or odours. This water filter cartridge is an essential addition to your camping gear, providing convenience and enhancing your outdoor experience.

The AquaHouse Water Filter is a versatile solution to replace various Daewoo Aqua Crystal models, ensuring compatibility with several refrigerator brands such as Baumatic and Smeg. Manufactured in a certified facility, this filter guarantees safety and quality for your drinking water. Its NSF/ANSI certification means that you can trust it to reduce chlorine, improving the taste and quality of your water. With a six-month filter life, you can enjoy hassle-free maintenance while ensuring your water is always fresh and clean.

The AQUAWATER Poly Cartridge is designed to help you reduce the formation of limescale deposits in your home without compromising water quality. Its rechargeable polyphosphate crystals work effectively for up to 12 months, ensuring your appliances remain free from encrustation. This product is compatible with portafilters up to 10 inches in height, providing convenience in installation. Additionally, you can easily replace the cartridge every year, making maintenance hassle-free for you.

The Purway Sanic SX 5 MCR is an effective drinking water filter designed to enhance your water quality. Its antibacterial filter ensures that harmful bacteria are significantly reduced, providing you with cleaner water. With a 10-inch size, it easily fits most filtration systems, making installation straightforward. Additionally, the Microban filter technology helps prevent the growth of microbes, ensuring your filter remains hygienic for longer. This means you can enjoy fresh, safe drinking water without the hassle of frequent replacements.