Overview Reviews Product Description Part Number Inlet Ports Outlet Port S320100 3/8" NPT 3/8" NPT *For repair kit order part # 320105 Product Videos Custom Field Product Reviews (No reviews yet) Write a Review Write a Review × S320100 - Two Way Check Valve Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name *Email *Review Subject *Comments