these part numbers represent the same duct bulb holder

Exceeding this pressure can damage the internal diaphragm or safety seat

Common Questions Is the MA40-7043-501 compatible with both AC and DC power

providing consistent flame safeguard reliability for commercial heating or process equipment

Lennox 17F58 Collector Box 321894-709 these part numbers represent theWhen you are troubleshooting pressure switch trips or internal siphoning issues on Lennox ML195 series furnaces, a compromised Lennox 17F58 Collector Box is often the culprit. This genuine OEM cold end header box kit is a critical condensate management component designed to collect and redirect moisture and combustion gases toward the inducer motor and drainage system. Measuring 15 5 8" by 5 3 8", the 17F58 collector box is engineered with high grade