differential pressure gauge ashcroftCapable of low differential pressure measurement in high-static, wet-wet media applications, the Ashcroft Type 5503 differential pressure gauge is equipped with wetted materials of 316 stainless steel or Hastelloy C. Designed to monitor a variety of caustic liquids and gases, the gauge is available in 4- and 6-in. dial face versions with ranges from 0/30 IWD through 0/300 psid and optional features including liquid fill, electrical contacts and mounting hardware. 
Ashcroft Inc.; 800-328-8258; www.ashcroft.com