Side and rear catalytic liner kit, suits gas ovens which have removable shelf supports. The Catalytic Liners trigger an oxidation process which turns the grease and grime which is trapped in the porous enamel into tiny dust like particles. These dust particles can be easily swept or wiped out of the oven, after the oven has cooled down. This means the oven can be cleaned without the use of harmful chemicals. It also reduces the amount of time typically taken to clean an oven, giving you more time to spend with your family and friends. Handy self-cleaning catalytic liners absorb the fat given off during the cooking process. The fats are then vaporised by the heat of the oven, making cleaning a breeze. PLEASE NOTE: This product does not fit Serial Numbers past ML33. Please check this before purchase.