Home / HVAC / Water Softener Venturi Housing O-Ring, 2-pack 7342649 Water Softener Venturi Housing O-Ring, 2-pack 7342649$10.71 Price may not be up-to-date. In Stock View Product Part Number: 7342649 Brand: ECODYNE WATER SYSTEMS INC Seller: Sears PartsDirect Category: HVAC Not Returnable Description This venturi housing O-ring (part number 7342649) is for water softeners. Venturi housing O-ring 7342649 attaches to the venturi housing to prevent leaks. Wear work gloves to protect your hands when installing this part.