Description Additional information Description SR-500 Home » Products » Commercial Pool & Spa Equipment » Safety Vacuum Release Systems » Virginia Graeme Baker (VGB) Safety Vacuum Release Systems » StingL Switch- Safety Vacuum Release Systems » SR-500 Additional information Weight 5 lbs SR-500 SKU: SR-500 Categories: Safety Vacuum Release Systems, Virginia Graeme Baker (VGB) Safety Vacuum Release Systems, StingL Switch- Safety Vacuum Release Systems Related products Vac-Alert Safety Vacuum Release System Read more Emotron VGBA Sensor Read more