Replacement membranes 8 pcs
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Instructions Before first use: Clean the membrane in boiling water or steam for 3-5mins. After every use: Clean it with hot water and then air dry. Sterilizer it in boiling water or steam as needed. Tips: to dissassemble the membrane from the valve, push it out from the inside of the valve instead of pulling it off from the outside. it will prolong the life of the membrane.