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Webstone COMPLETE Isolation Valve Kit Z-Flex 44443COM
Webstone COMPLETE Isolation Valve Kit Z-Flex 44443COM

Webstone COMPLETE Isolation Valve Kit Z-Flex 44443COM

Brand: Z-Flex
SKU: 44443COM
Mfg Number:
Availability: In Stock Usually ships In 4-6 Business Days
Product Information
Retail: $154.74 Price: $138.16
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Z-Flex Venting Accessories - 44443COM Webstone COMPLETE Isolation Valve Kit - For All Tankless Water Heaters

The Webstone "Isolator EXP E2" COMPLETE Isolation Valve Kit for All Bosch AquaStar Gas Tankless Water Heaters (44443COM) comes with the following:

  • (1) Webstone "Isolator EXP E2" Isolation Valve Kit (44443PR) with separate hot and cold isolation valves and Pressure Relief Valve
  • (1) 24" x 3/4" FIP x MIP Gas Flex Line
  • (2) 24" x 3/4" FIP x MIP Braided Water Connectors
  • (1) 3/4" CGA IPS Gas Ball Valve

Easy two-step installation of your tankless water heater with unsurpassed safety, features and benefits. This is a complete inlet/outlet valve system that provides everything you need for a secure installation, including full port testing and flushing of the system with easy-to-install union connections.


  • Convenient two-step color coded union connections
  • Easy quarter turn ball valve operation
  • Full port throughout entire valve body
  • Individually controlled full port drain outlet
  • Ready to use for flushing or descaling
  • 3/4" outlet for pressure relief valve
  • 1/2" water supply adapters included (except when purchased with the 3/4" Bosch 2700ES/2400ES heaters as they are not needed)
  • Heavy forged brass construction
  • Conforms to NSF 61-9
  • Allows for one man full diagnostic testing of heater unit

This product is intended for use with all of our indoor and outdoor tankless water heaters.


Heater-Store or any of it's affiliates are not responsible for damages or injury caused by wrongful installation or application of this product.

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