Best Water Purification System Accessories of 2026

The Varify Water Test Kit helps you check your drinking water for 17 important factors like chlorine, lead, fluoride, and bacteria. This lets you know if your water is safe and healthy to drink. The test strips are high quality and reliable, so you get accurate results every time. Plus, the kit is easy to use with clear color changes that show you the water’s condition quickly. It also includes bacteria tests that give results within 48 hours, making it simple for you to monitor your water’s cleanliness without hassle.

The Oakton pH 4.01 Buffer is designed to help you keep your pH measuring instruments accurate and reliable. This solution is linked to official NIST standards, so you know it meets trusted quality guidelines. Using this buffer allows you to calibrate your pH meters precisely, which is essential for getting correct readings. The pH value of 4.01 is a common reference point used in many water testing and purification tasks, making it a convenient choice for everyday use. With Oakton pH 4.01 Buffer, you can ensure your equipment performs well and delivers consistent results.

The Industrial Test Systems Cyanide Kit is designed to make water testing simple and fast for you. It provides a quick 3-minute test time, allowing you to get results without waiting long. The kit detects cyanide levels starting at 10 ppm, which helps you monitor water safety effectively. Made in the United States, it assures you of quality and reliability. The compact packaging makes it easy to store and carry, so you can test water anywhere with convenience. This kit is a practical tool if you need accurate cyanide detection in water.

The Oakton pH 4.01 Buffer is designed to help you accurately calibrate your pH instruments, ensuring reliable and precise measurements. This buffer solution is carefully matched to a pH value of 4.01, which is a common standard for calibration in many water purification and testing systems. Because it is traceable to NIST standard reference materials, you can trust that the solution meets strict quality and consistency requirements. Using this buffer allows you to maintain your equipment’s accuracy, making your water testing or purification tasks easier and more dependable.

The Aries PF-00-6402 Filter is designed to keep your water system running smoothly and cleanly. It features a 1/4-inch male national pipe thread (MNPT) on one end, making it easy to connect securely to your system. The other end has a 1/4-inch hose barb, which allows for simple attachment to standard hoses, giving you flexibility in setup. With a fine 0.2-micron filtration size, this filter effectively removes tiny impurities, ensuring high purity water for your needs. Sold individually, it’s a convenient accessory to maintain the quality of your water purification system.

The HEVEIS Water Test Kit helps you check your home's water quality quickly and easily. It encourages you to test your water regularly, protecting your family from potential health risks. You don’t need any special skills to use it — even kids can get accurate results in just three simple steps. The kit comes with clear instructions and a handy color chart, so you can easily read and record your water test results right away. This way, you can keep track of your water quality over time and feel confident about the safety of your drinking water.

The Aries Nitrate Reduction Filter is designed to help you remove harmful substances from your drinking water, ensuring it is safer and healthier for daily use. It fits easily into standard whole-house or under-sink water filter housings, making installation simple and convenient. Whether for your home or industrial needs, this filter is versatile and reliable. Its larger size means it holds more filtering material, allowing it to work efficiently and last longer before needing replacement. This makes it a practical choice for anyone looking to improve water quality with minimal hassle.

The 3M HF25-MS Cartridge ensures you enjoy consistently high-quality water. As a genuine OEM replacement part, it guarantees compatibility and reliability for your Brew125-Ms Water Filtration System. With a filtration capability of 1 Micron and 1.5 Gym, it effectively removes impurities, enhancing the taste and safety of your drinking water. The innovative Sanitary Quick Change (SQC) design allows you to replace the cartridge quickly and easily, without needing any special tools. This means you can maintain your water filtration system with minimal hassle, ensuring you always have fresh, clean water at your fingertips.

The EWS SS-2.5 Purification System is designed to provide efficient water purification at a rate of 2.5 gallons per minute, ensuring that you have access to clean water when you need it. Manufactured in the United States, this unit reflects high-quality standards. As part of the Environmental Water Systems brand, it promises reliability and performance. With a single item included, setting up this purification system is straightforward, making it a convenient choice for your water purification needs.

The Rendrox Bypass Valve is designed to work seamlessly with a wide range of Fleck water softener models, ensuring compatibility and easy installation. This valve serves as a direct replacement for the common part number 60040SS, saving you time and effort when you need a quick fix. It helps solve common issues like leaks and valve switching problems, which can disrupt your water softening system. With 3/4 inch NPT threads, it fits residential water softeners and filters perfectly without requiring any modifications, making it a convenient and reliable choice for maintaining your system’s performance.