Review on 🔧 High-Quality Delta RP51919 Replacement Part for Enhanced Performance by Matt Pavelko

Remarkably easy to install. Delta only gets three stars here because they made ordering the right cartridge unnecessarily complicated. You might think that a three-way cartridge would allow you to divert water to three different plumbing connections, but that's not the case. With the 3-way cartridge, water can be routed to ports A, B or A+B. If you have these attachments, you absolutely need THIS 6-way valve. Also note that you need a 6-way Eustachian valve, otherwise the index lines will not align. To their credit, Delta made its universal valve work in both configurations. . The repair will be MUCH more expensive.