Blue Viega ManaBloc Stems (3 pack of 50602 's)

The work and fit as they should. I don't particularly like Manabloc but the house came with it. If you got hard water, buy extras cause even with a water softener, every time you turn these things they leak. Its like if you turn it, replace it. Put a bit extra silicone grease when you install them to "help" with future service.

Worked great on my mana block system manufactured in 1999/2000 to replace broken stems that I could not turn off.

I recently installed the Blue Viega ManaBloc Stems in my plumbing system, and I couldn’t be more pleased with the results. The installation process was a breeze. Each stem fit perfectly into the manifold, allowing for a seamless connection that felt secure and reliable. Overall, I highly recommend Blue Viega ManaBloc Stems to anyone looking to upgrade their plumbing system. They are a perfect fit for the manifold, easy to install, and built to last. This product truly exemplifies quality craftsmanship and functionality. If you want reliable stems that perform well, look no further!

One of the rare home-repair projects that can be completed as easily as the Youtube videos suggest. Definitely manageable and cheaper than a plumber.

Difficult items to find

Easy to install and works great.