Relieve downstream pressure when in closed position

Standards: ASTM F1807

8" Sleeve Assy

Vacuum Breaker Tube 9 In

safe water flow under changing water supply conditions ranging from 30

Vigil Antislip Safety Yellow, Steel Base with Silicon Carbide Anti-Slip Stair Nosing, Installation Method: Concrete - 02-700 ClassicSeries Relieve downstream pressure when inGrit coated nosing increases the shoe contact area and helps guard against slip hazards on polished, worn, or cracked stairs and those exposed to weather or fluid spills. Steel base with silicon carbide offers maximum resistance to corrosive and viscous fluids. Maintenance free design provides maximum antislip properties over long term use. Safety yellow cover provides high visibility while ascending and descending. Virgil installation fastening