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Webstone H-13703HV 3-4" to 1-1/4" Isolator Double Flange Check Valve

The Isolator Uni-Flange Ball Valve. The only way to isolate circulator pumps. These valves have revolutionized the installation of circulator pumps. The original Isolator Uni-Flange Ball Valve design has evolved into the largest flanged ball valve program in the industry today. No matter what your installation requires, there is an Isolator to meet your needs.

Includes One Set of Mounting Bolts & Full Faced Flange Gasket.
  • Reduces Leak Paths
  • Saves Labor & Space
  • Prevents Electrolysis
  • Eliminates Galvanic Corrosion
  • Allows Virtually No Air Into System Upon
  • Pump Replacement
  • Fits Virtually Any Circulator Pump
  • Slotted Holes for High Velocity Pumps
  • Guaranteed for Life
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Isolation Flange

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