Best Cartridge Pool Filters for Hot Tub of 2025

RELXTIME Spa Filter Cartridges are the perfect replacement for your spa pools. With their premium blue filter paper, they make it easier to keep the water clean compared to common filter paper. This means you can enjoy clean bathing and have fun with your family and friends without worrying about dirty water. These cartridges are compatible with all RELXTIME spa pools and come in a convenient 6 pack. They feature extra-durable plastic and quality dacron fiber pleats, ensuring powerful filtration performance that can collect even the finest dirt particles like hair, leaves, dust, sediment, and sand. Cleaning and replacing them is a breeze - simply remove the filter, scrub it with a cartridge cleaner tool, and wash it under strong water pressure. Maintain filtration efficiency and enjoy crystal clear water with RELXTIME Spa Filter Cartridges.

POOLPURE Spa Filter is a 35 sq.ft, 5 X 9 Drop in Hot Tub Filter. It is a compatible spare part and has been tested and certified by IAPMO against NSF/ANSI 50. The Trilobal Fabric Structure filter material makes it easy to release impurities when cleaning the filter, and the filter is like a new one after cleaning. The innovated "Dirt-Locking" technology makes the fabric traps much more contaminants than regular fabric. This filter efficiently removes hair, leaves, dust, sediment, sand, and other contaminants. It lasts for 1-2 years when proper maintenance is performed. Enjoy clean leisure time in your spa and hot tub with POOLPURE Spa Filter.

The Intex 29011E Type S1 PureSpa Filter Cartridges come in a pack of six and are designed to keep your PureSpa Jet Massage water clean and fresh. The filter cartridges are made with heavy-duty Dacron paper for the ultimate filtration and can be cleaned and reused for maximum efficiency. These filter cartridges work with all Intex PureSpa models, including 28403E, 28407E, 28443E, 28453E, 28421E, 28423E, 28413E, and 28453E.

The Spa Depot Power Soak Hot Tub & Pool Filter Cartridge Cleaner comes in 2 x 1 lb. bottles that clean pleated spa/pool filter cartridges with professional strength enzymes. The cleaner is safe to use as it can't cause water foaming and is also economical to use. It is an ideal solution for keeping your cartridge pool filters clean and efficient.

The isinlive Type VI Filters are designed for various inflatable hot tubs, ensuring a perfect fit for models like Lay-Z Spa and Coleman SaluSpa. With advanced "Dirt-Locking" technology, these filters effectively trap dirt and debris, keeping your water crystal clear. They withstand high temperatures up to 45℃, making them durable and resistant to chemicals. Cleaning and installing these filters is a breeze, as they are designed for easy maintenance. Simply replace them every 2-3 weeks to maintain optimal performance in your spa or pool.

The Slamate Type VI Hot Tub Filter Cartridge is a pack of 12 premium quality spa filters that are compatible with Bestway Lay-Z-Spa, SUNSET FILTERS VI, Volca Spares Size VI, POOLPURE PLF-INTV1 Spa Filter, and Coleman SaluSpa 90352E, 58323E, 58323 Filter Pump. The filter cartridge has a trilobal structure fabric that captures 3x more contaminants than regular fabric, providing great filtration performance by effectively reducing hair, leaves, dust, sediment, sand, rust, and large particles. The dense pleating structure provides a larger filtration area than common filters of the same size, making filtration more efficient. The filter cartridges are easy to clean and maintain.

AquaDoc Filter Cleaner is designed to enhance the performance and longevity of your spa and hot tub filters. Simply soak your filter for just one hour in this effective cleaning solution, eliminating the need for overnight soaking. This product works on various types of filters, including cartridge, sand, and diatomaceous earth, ensuring thorough cleaning. Made in the USA, it meets professional-grade standards, giving you peace of mind about the quality. With AquaDoc, you can enjoy your leisure time without the hassle of filter maintenance.

The Macaberry Hot Tub Filter is designed to fit various inflatable hot tubs, including Coleman SaluSpa and Lay-Z-Spa models. With its high-quality filtration performance, this cartridge effectively captures dirt, hair, and debris, ensuring a cleaner and healthier spa experience. You’ll appreciate how easy it is to clean and replace, allowing you to maintain optimal water quality with minimal effort. For the best results, remember to replace it every two weeks during peak usage. Sold in convenient packs of eight, this filter is perfect for keeping your pool or hot tub in pristine condition throughout the summer.

The POOLPURE Spa Filter is designed to keep your hot tub or pool water clean and clear. With a size of 13 5/16 inches in length and a diameter of 5 inches, it fits various models, ensuring compatibility. Its certification under NSF/ANSI 50 guarantees that the materials used are safe for your water. The unique trilobal filtration fabric enhances the filter's capacity to capture fine particles like hair and dust, providing you with a consistently fresh swimming experience. Easy maintenance is another plus, as you can simply clean the cartridges monthly for optimal performance.

The CYXG Hot Tub Filter is essential for maintaining clean and safe water in your inflatable hot tub. Its Type VI cartridge features a diameter of 4.13 inches and a height of 3.14 inches, ensuring it fits various models. Crafted from heavy-duty Dacron fabric, this filter efficiently captures debris like hair and dust, providing you with fresh water for a worry-free soak. It’s easy to clean and should be replaced every two weeks to ensure optimal performance. With a 12-month quality guarantee, you can feel confident in your purchase and enjoy your hot tub to the fullest.