New T6711 Maintenance tank Box For WF-3621 3620 3640 3520 3540 7110 7210 7510 7610 7620 7710 7720 3011 ET16500Printer

Worked perfectly! The Cartridge chip for the WF7840 was exact replacement and work flawless. Thank you for the quick ship.

Excellent Product. I wish I would have found this little pump a long time ago as this is a miracle worker on getting that capping station so clean. This now keeps my printhead so much cleaner. I highly recommend.

Thanks to your YouTube instruction I was able to order the part and fix my 83 yr old sister's printer. I am an 80 yr old female and was thrilled that this part fixed her printer and saved her some money since she did not have to buy a new printer. I have never before tried to fix something like this. Needless to say, I was surprised it work so well.