Mercoid Dwyer 125-4806 Series 123/123-3 Cast Iron Chamber Low Water Level Control DPDT 2-SPDT Mercury Switches w/ Common Ground 2-Circuits Close as 2-Circuits Open 4A 120VAC/DC 2A 240VAC/DC - we have 1 of these boiler low water or feedwater level controls available with Free Shipping.
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