Webstone The Isolator® E-X-P® E2 Clean Brass® H-84443WPR-LF 8444W Tankless Water Heater Service Valve Kit, 3/4 in Press, For Use With Wall Hung and Combi Boiler, Brass, Import

  • Country of Origin: CN
  • Domestic/Import: Import
  • Manufacturer Name: NIBCO Inc.
  • Material: Brass
  • Series: 8444W
  • Specifications: 3/4 in Press
EXP Tankless Water Heater Service Valves are the preferred choice for isolating any tankless water heater. These valves provide quicker consistent quality installations, with fewer leakpaths and simplify future maintenance. Designed for use with water, oil, glycol mix in residential or commercial residential plumbing, commericial plumbing, heating systems. Refer to specification sheets for additional technical information. All Webstone products are backed by a limited lifetime warranty.
  • Features and More


  • Quicker, consistent quality installations
  • Fewer leak paths
  • Color-coded drain handles
  • Allows for easy cleaning or flushing of system
  • Allows for one person diagnostic testing
  • Saves 108 minutes
  • Replaces 14 components
  • Eliminates 12 leak paths
  • This valve is actuated by a blowout-proof stem
  • https://youtu.be/FA9bRsqEv5s


  • Residential and Commercial


  • 150 psi 200000 Btu/hr Lead Free Residential Pressure Relief Valve


  • ANSI B1.20.1
  • NSF/ANSI 61/372
  • PROP65: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov


  • Limited Lifetime