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Ensure optimal suction for your Bestie breast pump. Designed to maintain strong suction and efficient performance, this valve is essential for regular pump maintenance. For frequent pumpers, replace every 1 to 2 months; for occasional users, every 2 to 3 months. CARE INSTRUCTIONS: Disassemble and wash with warm soapy water. Soak in boiled water for 5 minutes, air dry completely. INCLUSION x1 Valve