All Brass Reversible The valve is made of brass throughout. The body of the valve is threaded accurately to size and the seat on which the lid closes is machined perfectly smooth. The lid or cover, is furnished below with a tapering guide which directs it to a perfect seating when the valve is closed and no matter what the conditions may be, when the handle of the valve is raised this seating must be accomplished, since it is impossible to dislodge the cover or throw it from its seat. For sise of trough By removing the two brass bolts and connecting the handle in position perpendicular to that shown, the valve can be used on the side of the watering trough, instead of the bottom. As a tank value by reversing the handle, end for end, this valve makes a very substantial tank valve.