Overview Reviews Product Description Controller, Burner, With Valve Proving, With Shutter Drive, Honeywell Part Number RM7890B1048Honeywell Process Solutions products are only available in some markets. Please call for more information. Product Videos Custom Field Product Reviews (No reviews yet) Write a Review Write a Review × Honeywell Honeywell RM7890B1048/U Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name *Email *Review Subject *Comments