As an Amazon Associate, we earn from qualifying purchases. Newmac Blocked Vent Switch - 2040300 Newmac . 2040300 Attributes Brand name, Manufacturer name, ManufacturerNewmac Extra Product NameNewmac Blocked Vent Switch - 2040300 keywordsnewmac, newmac blocked, newmac vent, newmac switch, newmac blocked vent, newmac blocked switch, newmac vent switch, # 2040300 moq, multiple, tierMinQty11 MPN, SKU2040300 snippetReplacement blocked vent switch for Newmac oil and wood furnaces and boilers. OEM USSC part # 2040300 tierPrice183.53 Distributor offers SellerSKUMOQIn stockMultiplePrices Stove Parts Unlimited2040300111 @ $83.53