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preventing water bypass and ensuring the valve cycles correctly between positions
Width 12 in
If the inserts show signs of corrosion or thread damage
it is not listed for all color configurations
A complete filter re-grid for this model requires 2 × FG-3009
Pentair Thermostatic Expansion Valve | UltraTemp Heat Pump | 473787Z Pool Equipment Parts preventing water bypass and ensuringThe Pentair Thermostatic Expansion Valve (473787Z) is the OEM replacement expansion valve for the UltraTemp Heat Pump series, specifically engineered for Models 120, 120C, 120Q, and 90I. IMPORTANT: LICENSED PROFESSIONAL INSTALLATION REQUIRED Heat pump refrigerant systems require EPA Section 608 certification to service legally. Do not attempt to service refrigerant circuits without proper certification. This component must be installed by a licensed
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