The INTERTOOL 4 Way Block Manifold Air Splitter with Couplers PT08-1856 is a great pneumatic accessory that complements any air compressor used to support various air tools simultaneously. Conveniently run up to 4 air hose lines at once to a compressor and avoid the need to switch back and forth between lines. This allows the user to save both their hands and the hose threading from being worn down from wear and tear. Composed of lightweight aluminum making this piece tough and resistant to corrosion while only weighing in at 0.75 pounds (lbs). Also included are 4 Industrial style brass couplers that can be easily removed with a wrench to replace with any 1/4" MNPT fittings. This simple straight splitter will save time, energy, and frustration for those busy jobs that have tight deadlines.