Overview Reviews Product Description 3/8" MODULATOR VALVE USED W/ SERIES 14,24,44,94 SYSTEMS4 44 94 SYSTEMS Product Videos Custom Field Product Reviews (No reviews yet) Write a Review Write a Review × Maxitrol Maxitrol M411 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name *Email *Review Subject *Comments