The TRIANGLE TUBE PSRKIT83 Venturi Valve is a replacement combustion component designed for the Triangle Tube PRESTIGE Solo 250 gas-fired condensing boiler. It works with the boiler’s blower and gas supply system to mix combustion air and gas in the correct proportions, supporting stable and efficient burner operation. This component is ideal for repairing or maintaining compatible bo... https://www.partshnc.com/psrkit83-triangle-tube-venturi-valve-solo-250