(12) 7.25 oz. cans. Odor Assassin Metered Refills deliver continual long-lasting odor control in choice of several delicious scents. All fragrances contain our patented odor control ingredient that truly eliminates offensive malodors. 7.25 ounce aerosol cans deliver 3000 metered sprays which lasts 30 days when dispensed every 15 minutes. Fits the "Sensor Dispenser" - sold separately - and most other automatic dispensing cabinets.