The Toyotomi 20479531 is a genuine Relief Spring for Laser 30, Laser 301, Laser 302, Laser 530, Laser 531, Laser 532, OM-22. Spring for the pressure relief in the fuel system. Replace if it is weak, corroded, or lost during service.
This is an OEM Toyotomi part, so it fits and performs the way the original did. Confirm your heater model before ordering; the model is on the rating label on the unit. If you are not sure which part you need, Rural Energy support can check it against your model and serial number.
Rural Energy is a Toyotomi distributor and keeps Toyostove Laser and Oil Miser heater parts in stock for fast shipping to dealers and homeowners.