Best CTO Water Filter Cartridges of 2025

The iSpring FC15B Filter Cartridge is crafted from premium coconut shell carbon, ensuring excellent filtration efficiency for your under sink or whole house water systems. It effectively removes up to 99% of chlorine, along with unpleasant tastes and odours, providing you with clean, refreshing water. With a long lifespan of up to 50,000 gallons, it offers great value, reducing the frequency of replacements. This filter is compatible with various standard systems, making it a versatile choice for your water filtration needs.

The Lafiucy Carbon Filter offers high-quality filtration with its activated coconut shell carbon, effectively removing up to 99% of sediment, chlorine, and unpleasant odours. Its 5-micron filtration rating ensures that you enjoy clean and fresh water. Designed for easy installation, this filter fits most standard water systems, allowing you to replace it quickly without any tools. With NSF certification, you can trust that this filter meets safety standards, providing peace of mind for you and your family.

The Vyair Carbon Block Filter is designed to enhance your drinking water quality through its premium activated bituminous carbon construction. This ensures efficient filtration, making it ideal for reverse osmosis systems and aquatics. With WQA certification and WRAS approval, you can trust the filter's safety and quality, as it is made from food-grade materials. Its sensational filtration capabilities effectively reduce unpleasant tastes, odours, chlorine, THMs, and VOCs, providing you with cleaner and more pleasant drinking water.

The SimPure Y10C Filter Cartridge is designed for the SimPure Y10 Series Countertop RO water filter system. It is recommended to replace the CTO filter every six months to ensure optimal water quality, with a smart indicator light to remind you when it’s time for a change. The twist-in filter system allows for quick and easy replacements, making maintenance hassle-free. Additionally, it features the latest anti-counterfeiting technology, ensuring that you receive a reliable and high-quality product for your water filtration needs.

The Brightify Carbon Block Filter is a reliable choice for ensuring safe drinking water in your home. It is certified for material safety and undergoes rigorous testing, giving you peace of mind. Its efficient activated carbon design removes up to 99% of contaminants, improving the taste and quality of your water. With a long service life of 3-6 months, it filters up to 15,000 gallons, making it a practical option for everyday use. Enjoy cleaner, healthier water for drinking, cooking, and other household needs.

The VYAIR Water Filter Cartridge Set is designed for the Vyair RO-6-Complete water filtration system, providing you with a complete set of pre-filters for optimal filtration. This set includes filters for stages 1, 2, and 5, ensuring your water is thoroughly purified. It is compatible with various Reverse Osmosis units, offering flexibility for your setup. The three filters—PP moulded particle depth filter, GAC filter, and CTO carbon block filter—work together to remove impurities, giving you peace of mind about the quality of your drinking water.

The Naturewater Inline Filter is a versatile replacement cartridge designed for various common water filter systems. You can ensure your water is clean and safe by checking the cartridge sizes to confirm compatibility with your system. This filter effectively removes impurities, providing you with better-tasting water. Its simplicity in installation makes it easy for you to maintain your filtration system without hassle, ensuring a continuous supply of fresh water for your home.

The Water Filter Men Cartridge is a 10" carbon block water filter that effectively removes chlorine and various organic contaminants. With a 5-micron rating, it ensures that your drinking water is free from hundreds of toxins. This filter can be used in reverse osmosis systems or on its own in any 10" filter housing, providing versatility for your water filtration needs. You can enjoy cleaner, healthier water with ease.

The SimPure Carbon Filter is an excellent choice for those seeking clean and safe drinking water. Made from high-quality coconut shell carbon, this filter boasts a 5-micron filtration rating and can effectively remove up to 97% of sediment, chlorine, and organic chemicals. Its easy installation means you can fit it into various big blue whole house filtration systems without needing any tools. With a remarkable capacity of filtering up to 15,000 gallons, it provides long-lasting performance, ensuring you have fresh water for you and your family.

The Aquaboon Big Blue Filter is designed to fit standard 10-inch Big Blue filter housings, making installation straightforward for you. It includes a 5-micron carbon block CTO water filter cartridge that effectively removes chlorine and other impurities, ensuring better taste and odour for your water. Additionally, the set contains a 10-inch sediment PP water filter cartridge with a 5-micron gradient density, which helps trap larger particles and prolongs the life of your system. With a filter life of up to 10,000 gallons, you can enjoy clean water for an extended period without frequent replacements.