EufyMake E1 Refillable Cartridge Shells Convert your OEM EufyMake E1 ink cartridges for easier access to the cartridge's built-in fill port. The BigSarge207 replacement outer shell lets you refill, purge, or service the cartridge without repeatedly removing the factory shell. What's Included Your choice of 2-shell or 6-shell set Available in Black (Silver available while remaining inventory lasts) Color-coded threaded fill-port plugs Newly released shims and pull tool Shipping support to protect the shells in transit The original EufyMake cartridge inner body, expiration chip, and internal components are reused. You'll simply remove the OEM outer shell and install the BigSarge207 replacement shell. Syringes and 14-gauge blunt-tip needles are required for filling and are sold separately. Prefer to Print Your Own? A downloadable, print-ready 3MF version is also available for personal use. The file includes the print settings used to produce the shells and is optimized for ABS printing. Digital Product Policy: All digital download sales are final. Once the file is delivered, no refunds or cancellations are available. If you have an issue opening or using the file, I’ll make sure you receive a working copy. Want the complete installation, printing, and refill instructions?See the EufyMake E1 Refill Guide for detailed instructions, print recommendations, downloads, and troubleshooting.