4-Pack 0.625 ounces each. About Yankee Candle ScentPlug Refills Choose a ScentPlug Refill fragrance that matches your mood, your décor or the season. They offer a clever way to bring a signature fragrance to every room of the house. Great for entryways, bathrooms and even bedrooms, these tiny scent makers deliver for up to four weeks. That's a whole month of welcoming fragrance. . . nice!