Lochinvar & A.O. Smith 100161835 Valve 320788-703 you must order the specific

you must order the specific programmable control module (such as 10Y61 or 10M08) that matches your original part number

When selecting a replacement relief valve

Durable Construction: Built with Class B insulation and ball bearings for high-temperature

By ensuring consistent spark generation and millivolt-sensitive flame sensing

Exact OEM Fit: Designed specifically for 480V systems with 88-inch leads for straightforward integration into existing control circuits

Lochinvar & A.O. Smith 100161835 Valve 320788-703 you must order the specificThe Lochinvar & A. O. Smith 100161835 Air Metering Valve is a critical component for maintaining the precise combustion air to fuel ratio in high efficiency condensing boilers and water heaters. Engineered for exact modulation, this venturi air valve ensures the burner receives the correct airflow required for stable ignition and optimal thermal efficiency. It is a direct OEM replacement part designed to interface seamlessly with the blower assembly