HEWLETT PACKARD OEM INKJET INK FOR HP OFFICEJET PRO 8000 - 1-940 SD MAGENTA INK (C4904AN) - by HP

Tired of wasting hundreds of dollars on HP 940 and 940XL cartridges? InkOwl has the solution for you: our HP 940 refillable cartridge system! This easy-to-use product offers huge advantages over other options! The transparent design of the cartridges allows you to clearly see the ink level, the conveniently located fill plugs allow you to easily pour in ink, and their massive size means that you have to refill a lot less often. Let me show you how the refillable cartridge system is installed. Step 1. Either peel back or cut through the labels on both sides of your original HP cartridge to allow the bottom piece to be detached. Step 2. Do the same on the InkOwl refillable cartridge. Step 3. Install the bottom piece from the original cartridge onto the refillable one and firmly reattach the label securing it with tape. What this will do is allow your printer to recognize and authenticate