The DRIPLOC Oil Only Sphag Pail Filter System is a commonly used solution for grease containment. Its unique design makes it a great choice to separate the oil and water discharged from the fan both during rainstorms as well as when the fan is being washed. The Pail Filter System adapts to the grease drain found on many different styles and models of exhaust fans. On average, the Pail should be replaced after regular hood cleanings depending on the volume of grease that is produced the restaurant. The adapter and hose remain intact, while the new Pail is connected. This makes new filter re-installation fast and easy. It is very easy, and clean, to take the Pail off of or onto the roof making it a great fit for contractors and hood cleaners. The Pail System has the custom manufactured filter media inside. The Pail also has 16 drain holes which allow water to pass through the filter at a high volume while the grease is captured inside. So water passes through and grease stays inside. During cleanings, hood cleaners are encouraged to keep the Pail connected to the drain and "wash the dirty water and grease through the old filter during cleaning" and before installing a new filter. This will help prevent a dirty mess and EPA violations. SOLD 2 PER CASE.