Dealing with a dripping, leaking, or stubborn tap? Before you call a plumber, try swapping out the cartridge. This Replacement Tap Cartridge set is made specifically for Bristan Echo 3770R mixer taps, and it includes both hot and cold cartridges so you can fix the whole thing in one go. Made from solid brass with durable ceramic discs, these cartridges are built to last and restore smooth, leak-free operation. Installing them is a pretty straightforward DIY job—just turn off the water, remove the handle and old cartridge, pop the new ones in (red base for hot, blue for cold), and reassemble. You'll need basic tools like a wrench and screwdriver, but no special skills. It’s a cost-effective way to stop water waste, improve water flow, and avoid bigger plumbing issues down the line. Comes from a UK-based family business specializing in plumbing parts. If your Echo tap isn’t performing like it used to, this repair kit could be just the fix you need.