Best Pool & Hot Tub Filters of 2025

The POOLPURE Spa Filters are designed with your safety in mind, as they are tested and certified by IAPMO against NSF/ANSI 50 for eco-friendly materials. These filters are compatible with various models, ensuring a perfect fit for your hot tub. With a filtration area of 25 square feet, they effectively capture contaminants, providing you with cleaner water. The strong and durable construction resists high pressure and chlorine corrosion, giving you peace of mind while you enjoy your spa experience.

The Intex S1 Filters are designed to keep your PureSpa™ clean and fresh. With these filters, you can ensure that the water in your pool or hot tub remains clear and free from impurities. Made from durable Dacron paper, they provide ultimate filtration, making maintenance easier for you. This multipack includes six original S1 filter cartridges, ensuring you have plenty on hand. They are compatible with various Intex PureSpa models, giving you the flexibility you need for your spa experience.

The Darlly Hot Tub Filter is designed to enhance your hot tub experience. With a length of 33.80 cm and an outside diameter of 12.50 cm, it fits perfectly into your system, ensuring a snug fit. The filtration area of 25 square feet helps keep your water clean and clear, allowing you to enjoy a refreshing soak without worries. This filter is essential for maintaining water quality, making it easier for you to relax and enjoy your hot tub without the hassle of frequent maintenance.

The Intex S1 Filter Cartridges are essential for maintaining clean and clear water in your pool or hot tub. You will need to change these cartridges approximately every ten days, ensuring optimal filtration performance. Made from dacron fibre, they offer a fine filtration level of 20 microns, effectively trapping dirt and debris. Their interchangeable design makes it easy for you to replace them quickly, contributing to hassle-free pool maintenance. Additionally, they come in a variety of colours to suit your preferences.

The Bestway Sand Filter System boasts a powerful pump capacity of 5,678 L/h, ensuring efficient water circulation for your pool. It includes adapters compatible with pool valves, making installation hassle-free for you. The durable and corrosion-resistant filter tank guarantees longevity, giving you peace of mind. Additionally, the system comes pre-assembled with a top flange clamp that allows for 360° rotation, enabling quick and smooth setup. Enjoy a cleaner pool with less effort.

The Darlly SC778 Pre-Filter is designed to enhance your pool and hot tub experience. Measuring 19.0cm in length, this pre-filter ensures effective filtration, helping to keep your water clean and inviting. Its Hozelock fitting allows for easy connection, providing convenience when setting up or replacing filters. The closed bottom design prevents debris from entering, ensuring that your pool or hot tub remains clear and free from unwanted particles. With this pre-filter, you can enjoy a more enjoyable swimming environment.

The Bestway Polysphere Filter Balls offer an eco-friendly alternative to traditional sand filters, which helps you reduce waste and lessen your environmental impact. With their efficient filtration capabilities, a small quantity of these balls can match the filtering power of a large amount of sand, ensuring clean water in your above ground pool. Made from recyclable and non-toxic materials, these filtration balls can last for 4-6 months, saving you money on replacements. They are also reusable and easy to maintain, with a mesh bag included for convenient cleaning.

The DIYOLE Hose Water Filter is an NSF certified product that utilises advanced KDF technology to ensure high-quality water filtration. This filter effectively reduces chlorine, sediment, and unpleasant odours, providing you with cleaner and healthier water for your pool or hot tub. It is compatible with standard 3/4 inch garden hoses, making it ideal for various uses, including filling above-ground pools and hot tubs. Additionally, the filter is simple to use; just connect it to your hose, flush it for 60 seconds, and enjoy pristine water.

The vidaXL Pool Filter Sand is an essential product for maintaining a clean and safe swimming pool. This reliable alternative to traditional sand filters meets all your filtration needs with ease. The high-quality Quartz sand is designed to withstand frequent use and harsh chemicals, ensuring a long-lasting solution. With a perfect grain size of 0.4 - 0.8 mm, it effectively traps dirt and bacteria, resulting in crystal-clear water for your swimming enjoyment.

The VAZILLIO Filter Balls are an eco-friendly alternative to traditional filter media, made from high-quality polyester and acrylic fibre. With a filtration strength that is four to five times faster than conventional options, these balls effectively remove grease and particles as small as one micron from your water. You will appreciate their convenience, as 1500g of filter balls is equivalent to 53kg of sand, making them easy to handle. Additionally, they are reusable and machine washable, ensuring durability and long-term use.