Proven Performance and Quality – Significant Cost Savings V7 cartridges are backed by over 40 years of high-performance manufacturing experience from ISO 9000 / ISO 14001 certified state-of-the-art facilities. toners and key components are carefully selected, matched and verified for optimal system performance before a design is released to production. After final assembly, every cartridge is tested in equipment like yours prior to packaging. High-strength cartons with protective inserts ensure a safe arrival from our warehouse to your delivery location. Each box contains easy-to-follow illustrated installation instructions. By using our replacement toner cartridges, you are also helping to protect the environment by keeping reusable, non-biodegradable materials out of landfills. – Built to OEM specifications – with yield of up to 1800 pages – Replacement for OEM cartridge part number CLT-Y504S/ELS – Fits printer models C1810W,C1860FW,CLP-415 N,CLP-415 NW,CLX-4195 FN,CLX-4195 FW,CLX-4195 N – Environmentally friendly while easy on the budget without sacrificing quality! – 1 Year Manufacturer’s warranty