All of the features you trust from the original Isolator Uni-Flange ball valve, with two versatile enhancements. The 360 Deg flange rotation allows for orientation to any degree necessary for your installation and a multi-function drain that permits draining from either side of the pump. This forged brass full port ball valve features a blow-out proof stem, adjustable packing glands, a hi-flow hose drain and stainless steel snap ring for extra stability during installation.Conical inlet to minimize turbulenceReplaces 8 components, eliminates 7 leak paths, saves approximately one hour in laborFits virtually any standard circulator pumpAvailable with slotted holes for high velocity pumpsPrevents electrolysisEliminates galvanic corrosion