Hide Show Description Honeywell 315917/U diaphragm for VP525 radiator Valve. Made in United States. Manufactured by Honeywell. Used with: VP526A, VP527A, VP525A, VP525C, VP531A, VP531C.315917315917/UResideoSystem SensorGenesisHoneywell AnalyticsThermal SolutionsSalisburySelecta IncHoneywellSelectaFirst AlertBRKAube Customer Reviews Hide Show Write a Review