and Evcon models

Using it on the liquid line may cause excessive pressure drop and improper filtration

To prevent users from leaving the device in the "on" position indefinitely

always check the parts list for your specific cabinet before installation

Lochinvar & A.O. Smith 100208309 Nylon Brush 322838-754 and Evcon modelsThe Lochinvar & A. O. Smith 100208309 Nylon Brush is an essential OEM maintenance tool engineered for cleaning heat exchanger surfaces in high efficiency boilers and commercial water heaters. As a veteran tech, you know that soot and mineral scale buildup act as progressive insulators, driving down thermal efficiency and increasing flue gas temperatures. This HVAC heat exchanger cleaning brush features high resilience nylon bristles designed to