Compatibility & Perfect Fit: JALIELL cartridge filter kit is compatible and generic equipment perfectly. ( Note: this product is Produced and Supplied by JALIELL TECH). | Effective Filtering & Great Valve: JALIELL filters reduce bad air in the equipment effectively, provide the fresh smell for you. This great price included 5 cartridge filters and 5 check valves. | Improve Machines Lifetime: The check valve could better prevent water backflow and leakage from damaging electronics, keep your machine running at top performance. Recommend to replace the cartridge filter and check valve every 6 months. | Easy Installation: It is very easy to install, just remove the old one and replace it, no need to disassemble your machine. | Satisfaction Guarantee: 100% money back if you don't like them. If there have any question or problem with your order, please feel free to contact us. We will reply you within 24 hours and make right for you.