The Raypak 004675F Economaster Relay/Circuit Board is a crucial component designed for efficient HVAC system operation. This Economaster Relay is integral to controlling and optimizing the performance of heating systems, particularly in commercial and residential settings it is compact yet robust enough to handle multiple connections, ensuring reliable signal transmission and operatio... https://www.usapoolshop.com/004675f-raypak-economaster-relay-circuit-board