Home / Appliance / Parts / Water Softener O-Ring, 4-pack 7337571 Water Softener O-Ring, 4-pack 7337571$22.31 Price may not be up-to-date. In Stock View Product Part Number: 7337571 Brand: ECODYNE WATER SYSTEMS INC Seller: Sears PartsDirect Categories: Appliance, Parts Not Returnable Description This O-ring (part number 7337571) is for water softeners. Unplug the water softener before installing this part. Wear work gloves to protect your hands.