SC Johnson - A family company. Bonus warmer (based on per unit value of refill twin pack). Fragrance infused with essential oils. Revel in the wonder of the holidays with the notes of crisp pine, juniper, and a hint of mistletoe with Pine Wonderland. Glade Plugins scented oil fragrances deliver scented ambience. Each refill will provide up to 50 days of fragrance on the low setting. Refills compatible with. A family company since 1886 - Fisk Johnson.