Test Gauges – Series 2554 Only one moving part and an inconel direct drive spiral bourdon tube. By M2 Communications|2013-11-13T18:42:00-06:00November 4, 2011|All Duro United Gauges|Comments Off on Test Gauges – Series 2554 Share This Story, Choose Your Platform! FacebookXRedditLinkedInWhatsAppTelegramTumblrPinterestVkXingEmail About the Author: M2 Communications Related Posts Accugauge AG100, Digital Pressure Gauge Accugauge AG100, Digital Pressure Gauge Stainless Liquid Filled Gauges – Series 3 Stainless Liquid Filled Gauges – Series 3 Brass Liquid Filled Gauges – Series 2 Brass Liquid Filled Gauges – Series 2 OEM Economy Gauges – Series 1 OEM Economy Gauges – Series 1