Overview Reviews Product Description 1/4 1-1/4" GAS PRESSURE REGULATOR-4,500,000 USE WITH R81100 000 USE WITH R Product Videos Custom Field Product Reviews (No reviews yet) Write a Review Write a Review × Maxitrol Maxitrol RV81-1 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name *Email *Review Subject *Comments