Our Compatible inkjet cartridges are designed to be a direct replacement for the Samsung CLT-M503L/ELS M503L model. The page yield for this product at 5% coverage is approximately 5000 pages, and is part of our range of non-stocked Compatible inkjet Cartridges. Prices do not include VAT or delivery, however, all products are supported by a 5 Year Warranty and free Next Day Delivery when you order before 4pm. This demonstrates our confidence in the quality and reliability of our products. Please note, all products are non original/non OEM and estimated delivery time is 5 days.