Epson C13T04D100 Maintenance Box for XP-5100

Epson C13T04D100 Maintenance Box for XP-5100 is down to £10.49 at Amazon. It has typically been selling for around £16.48 over recent months, so this works out at roughly 36% below its usual price.
Its currently ranked 4,115 in Computers & Accessories on Amazon and rated 4.6 out of 5 from 2,197 customer ratings, so plenty of buyers have already tried it.
Key features:
Genuine Epson maintenance box, model C13T04D100
Designed for the Epson XP-5100 printer, as named on the listing
Easy to replace
Measures 15.2 x 11.6 x 7.2 cm
The maintenance box collects waste ink, and printers stop printing when it fills up, so it is worth having a spare if you own a compatible Epson. Check your printer model against the listing before ordering.