Simplified Retrofitting: Enables advanced smart thermostat installation using only two existing wires

While technical specifications for some Fenwal 35-66 series allow for field-selectable line voltage

It features a straight-through body pattern with an adjustable servo regulator to maintain consistent manifold pressure

Built with galvanized steel and a concave center disc

Lochinvar & A.O. Smith 100208109 Gasket 319847-401 Simplified Retrofitting: Enables advanced smartThe Lochinvar & A. O. Smith 100208109 Gasket is a critical OEM replacement component designed for high efficiency commercial boilers and water heaters. As a heat exch divider gasket (also known as a hex gasket for the divider panel), this 1 2 inch seal is specifically engineered for the Power Fin Model PB 502 thru 1302 heating boilers and PF 502 thru 1302 hot water supply boilers. This part provides a high temperature seal between heat exchanger