Overview Reviews Product Description Supply: 1/2"Delivery (4): 3/8"Control: 1/4"Crack Pressure: 4.0 PSI Vertical Mount, 4 port delivery located on the bottom of the valve. Product Videos Custom Field Product Reviews (No reviews yet) Write a Review Write a Review × RV065104 - Relay Valve (12) Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name *Email *Review Subject *Comments