This dispenser operates every 15 min with a 30-day refill life. Works automatically 24 hr a day and is specially designed for use
with the Country Vet insect control or fragrance/odor refills. Works with Country Vet insect control or fragrance/odor control
refills. Lasts up to 30 days. Holds 6.4 - 6.9 oz refill cans.