Armstrong R05701B004Armstrong R05701B004 is a reliable Pilot model designed for steady, dependable operation in demanding environments. Built with industrial grade materials and precision engineering, this unit delivers long lasting performance with straightforward installation. Whether used in commercial settings or dedicated projects, the Armstrong R05701B004 provides consistent control, smooth operation, and minimal maintenance. A robust, durable design ensures

on-site setup for heating and air conditioning systems

Durable Construction: Reliable stem material designed for long life in demanding HVAC environments

Dual AC voltage options: 120/60 Vac or 110/50 Vac

internal junction box

Hub: Concave

This OEM replacement part delivers consistent pressure sensing and fast response to keep your cooling

efficient start-up for natural gas and LP-fired systems with a 3-trial ignition sequence and a 2-second flame failure response

Its compact design minimizes panel intrusion while preserving accessibility for wiring and testing

Standard-fit replacement part compatible with Armstrong combustion control systems

Fits Armstrong units that require the 21W10 fan assembly

and carries UL (US/Canada) and CSA approvals for safe

this fan blade delivers balanced airflow and quiet operation