Home / Appliance / Parts / Water Softener Nut 0507369 Water Softener Nut 0507369$17.89 Price may not be up-to-date. In StockThis affiliate is currenty offline. Part Number: 0507369 Brand: ECODYNE WATER SYSTEMS INC Seller: Sears PartsDirect Categories: Appliance, Parts 60-day return policy Description This manufacturer-approved nut (part number 0507369) is for water softeners. Wear work gloves to protect your hands when installing this part.