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2-1/2A configuration Compatibility is based on Pentair parts documentation and available OEM records
maintaining structural integrity and appearance over time
compare the color of your existing ring against the product photo — the correct replacement must match your current installation
or using alone for a simple
Length 16 3/4" Outer Diameter 4 5/8" Top Inner Diameter N/A (closed castle cap) Bottom Inner Diameter 2 1/16" Material 4 oz
Pentair Air Pressure Switch | ETi® 400 & UltraTemp ETi® Heaters | 475987 Drains 2-1/2A configuration Compatibility is basedThe Pentair Air Pressure Switch (475987) is the OEM replacement pressure switch for the ETi 400 and UltraTemp ETi series pool and spa heaters. IMPORTANT: HEATER COMPONENT PROFESSIONAL SERVICE REQUIRED Gas and electrical heater components must be serviced by a licensed pool professional or qualified HVAC technician. Do not attempt to service gas or high voltage components without proper certification. The air pressure switch monitors airflow through
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