Overview Reviews Product Description Proportioning Valve - 1/8 in NPT Female Inlet - 1/8 in NPT Female Outlet - Knob Type - Aluminum - Natural - Each Product Videos Custom Field Product Reviews Write a Review Write a Review × Allstar Performance Proportioning Valve Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *