P2R Vacuum Block allows use of one source for all of your vacuum connections. No more need for tons of T's coming from your intake manifold. Vacuum connections are much easier, and installation of gauges is made much simpler. Works great for Individual throttle bodies and turbo applications that require tons of vacuum lines. Has 5 - 1/8th npt ports, and 1 – 3/8th npt port on each side. Made of 6061 aluminum and anodized black for a nice quality finish.