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(Wide Neck to Standard Neck)
2 sets of Transparent Valve & Membrane Transparent Valve Made of PP Reusable
250ml cup Two-way connection method Compatible with Spectra S1, M1 & 9 plus 28mm or 24mm Breastshield either one Handsfree Collection Cup 2x Silicon Head, 2x Air Hose, 2x Anti-back flow cap, 2x anti-back flow silicon, 2x valve base, 2x cones
One of the parts in the backflow protector. Not recommended to sterilize due to its rubber material. Will affect suction of the breastpump with wear and tear For Old designed (twisting mechanism) back flow protector