SoClean has discovered counterfeit Cartridge Filter Kits being sold, particularly on Amazon® and eBay®, with check valves and filters, that leak and can cause damage to your SoClean machine or to your property due to water leakage from the counterfeit check valves. Please purchase your Cartridge Filter Kits from SoClean® only. Authentic Cartridge Filter Kits can be purchased from SoClean via multiple online marketplaces, such as Amazon® and eBay® in addition to SoClean.com, however please confirm that the seller of your Cartridge Filter Kit is SoClean, and not any other seller, to ensure the authenticity of your Cartridge Filter Kit. Please contact SoClean immediately if you have had any issues with your Cartridge Filter Kit. Amazon® is a registered trademark owned by Amazon Technologies, Inc. eBay® is a registered trademark owned by eBay, Inc. SoClean® is a registered trademark owned by SoClean, Inc.