Conbraco Industries 18C-402X-38 Valve Precision OEM Fit: Ensures direct

Precision OEM Fit: Ensures direct compatibility with specific Aaon RTU models

The Sporlan 168304 is technically identical to the BQC-AA cartridge

Key Benefits for Technicians: Precise Resistance Matching: Calibrated to OEM specifications for accurate York defrost troubleshooting and control board communication

Optimized Safety: Ensures rapid gas ignition to prevent fuel accumulation and ensure safe HVAC gas burner operation

When the sensor detects that the defrost heater has reached a threshold that could compromise the integrity of the evaporator assembly

Conbraco Industries 18C-402X-38 Valve Precision OEM Fit: Ensures directFor high demand commercial water heating systems, the Conbraco 18C 402X 38 Valve (also known under the Apollo brand) provides critical protection against thermal expansion and over pressure conditions. This 3 4" MNPT x 3 4" FNPT T&P relief valve is engineered specifically with a 2" extended shank, allowing for proper installation on modern water heaters with thick insulation blankets without compromising the discharge path. With a factory calibrated