The only way to open and close the valves on your MANABLOC Manifold is with a Valve T-Handle. At less than a dollar each, it's usually recommended to pick up an extra or two. This way, you can save the stress of looking all over for this small, plastic piece if you happen to lose the one that comes with your manifold.
PEX Manifolds and other parts for PEX Plumbing can be found at www.supplyhouse.com
PEX Manifolds and other parts for PEX Plumbing can be found at www.supplyhouse.com