A top-quality Epson colour inkjet printer is a big investment, so it makes sense to look after it with genuine maintenance products like the T3661 maintenance box. Purchasing original Epson products is the simplest way to get the most from your printer and the C13T366100 will increase the life of the machine substantially.Having a top quality maintenance box inside your Epson printer comes highly recommended and the T3661 is guaranteed to be trouble-free too. In the rare instance that you experience an issue with the genuine C13T366100 maintenance box, Epson offer a full warranty themselves for total protection.