F means that the product is rated in its category in terms of energy efficiency. The Energy Labeling system is based on EU Regulation 2017/1369/EU. F Samsung RL4353RBASL/ES, 435 L, No Frost (fridge), SN-T, 12 kg/24h, F, Stainless steel Samsung RL4353RBASL/ES. Total net capacity: 435 L. Door hinge: Right, Display type: LED. Climate class: SN-T, Noise level: 41 dB. Fridge net capacity: 303 L, No Frost (fridge), Multi-Airflow system (fridge), Fridge interior light. Freezer net capacity: 132 L, Freezing capacity: 12 kg/24h, No Frost (freezer). Energy efficiency class: F, Annual energy consumption: 335 kWh. Product colour: Stainless steel