Evenflo recommends replacing membranes, valves, and diaphragms every 60–90 days. Inspect parts and replace sooner if you notice decreased suction or reduced pump performance.
Evenflo Balance nipples are available in Slow, Medium, and Fast flow rates. Some listings also label the fast flow as Level 3.
Replacement kits typically include multiple flange sizes, tubing, diaphragms, caps, membranes, and valves. Some kits are sold in multi‑count packs (for example, a 16‑count set).
Nipples are made from silicone. Replacement pump parts are described as made from FDA‑approved food‑grade materials and free of BPA, polycarbonates, PVC, and phthalates.