The assembly includes RTV high-temperature silicone

it is fully compatible with modern R-410A refrigerants

Direct OEM Compatibility: Eliminates the guesswork associated with universal blades

maintaining exterior surface temperatures within safe limits

mineral scale is likely present

Heil Quaker ICP 1172712 Fan Blade 322027-701 The assembly includes RTV high-temperatureThe Heil Quaker ICP 1172712 Fan Blade is a critical OEM replacement part designed for high performance condensing units and split system heat pumps. Engineered to maintain the precise thermal balance of your HVAC system, this condenser fan blade features a 20 inch diameter and a 24 degree pitch, optimized for maximum CFM (cubic feet per minute) output with minimal vibration. This 2 blade assembly is specifically balanced for clockwise (CW) rotation