This tubing CAN NOT be used with any other Medela breast pump except Freestyle breast pump. Tubing should be replaced after long periods in storage since any moisture inside the tubing may promote mold / bacteria growth. Use Medela’s QuickClean Micro-Steam bags #87024 (5 pack bags sold separately) to sterilize any breastfeeding parts or accessories. The best method to clean tubing is in the microwave with Medela Quick Clean Micro-Steam Bags (alone with no other parts in the bag), see listing in Medela cleaning supplies. Note: This item is available in sealed packaging.