Overview Reviews Product Description GP ZKS3 SAFETY RELIEF VALVE 10,000 PSI MAX 2.6 - 21.4 GPM 284° F MAX TEMP 1/2" BSP-M OUTLET: Side Product Videos Custom Field Product Reviews Write a Review Write a Review × GP GP ZKS3 - Safety Relief Valve, Side Discharge (Call for Pricing) Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *