The sealing ring of the heating plate is a wearing part and should therefore be replaced regularly to avoid a leaky connection between the baby bottle and Liini. recommend buying three replacement seals in stock when purchasing Liini. Please note that the seal may only be used for the heating plate. You can order the seals within the adapters for the different baby brands separately in the shop. The sealing ring should be cleaned under hot water before first use. Sterilising in boiling water can lead to deformation. For this reason, the use of boiling water is expressly not recommended. Scope of delivery: Liini replacement seal for heating plate. Attention: Not suitable for Liini porridge warmer