Evolve & FIT Pro Accessories & Parts

An automatic breast pump is a motor-powered device that creates suction automatically to express breast milk as opposed to a manual pump that you operate by hand. Automatic pumps are faster, less tiring, and more consistent in suction delivery, making them the standard choice for moms who pump regularly. Most automatic breast pumps express both sides simultaneously (double electric), which roughly halves session time compared to single pumping.

The main difference is the pumping format. The Hygeia Express is a wearable pump, the collection cups sit inside your nursing bra with nothing visible externally, giving you completely hands-free pumping. It also delivers hospital-grade suction up to 275 mmHg with 3 modes and 9 levels per mode. The FIT Pro uses a traditional setup with external flanges and collection bottles a simpler, more familiar design at a lower price point ($174.99 vs $259.99). Both are cordless, closed-system, and FDA registered.

Yes. Both the Hygeia Express and the FIT Pro are insurance-eligible under the ACA, which requires most US health insurance plans to cover breast pump equipment without cost-sharing. Many moms receive their pump at $0 out-of-pocket. Hygeia handles the verification and paperwork directly. Use the Insurance Eligibility Checker to confirm your plan's coverage.

The Hygeia Express is explicitly hospital-grade, reaching up to 275 mmHg, the clinical benchmark for hospital-grade suction performance. The FIT Pro delivers hospital-strength performance with its two-phase suction system and is built to the same safety and hygiene standards as the Express. Both are FDA registered and use closed-system backflow protection.

Yes. Both pumps are fully cordless. The Hygeia Express has a built-in rechargeable battery charged via power cord, supporting multiple sessions per charge. The FIT Pro has a built-in rechargeable lithium battery charged via a USB-compatible power adapter. Once charged, neither pump requires an outlet during a session, you can pump at work, in a car, on a plane, or anywhere else without any power source nearby.

Measure your nipple diameter in millimeters (just the nipple, not the surrounding areola), then add 2-4mm, that's your starting flange size. The Express comes with 27mm wearable cups and 24mm inserts. The FIT Pro includes both 24mm and 28mm flanges. Additional sizes are available in the accessories stores for both pumps. For a full walkthrough, visit the Flange Sizing Guide, or connect with a certified lactation consultant through the Hygeia Baby App for a personal fit assessment.

Yes. Both pumps come with access to the Hygeia Baby App, which includes 1:1 sessions with IBCLC-certified lactation consultants, session tracking, supply guidance, and latch support at no additional cost. Learn more at the Lactation Assistance page.

Some parts including duckbill valves, backflow protectors, and tubing are compatible across both models, though the wearable cup system and standard flange setup differ by design. The FIT Pro includes specific tubing adapters in the PAS kit for its setup. For confirmed compatibility on specific parts, check the Express Accessories store and the Evolve & FIT Pro Accessories store separately.

Valves are the most frequently replaced part, the silicone loses elasticity after several weeks of daily use, which reduces suction efficiency. Most moms replace valves every 4–8 weeks depending on session frequency. Backflow protectors and tubing should be checked monthly for cracks, cloudiness, or residue. Replacing worn parts is the most effective way to maintain consistent suction without replacing the pump itself.

Both the Hygeia Express and the FIT Pro carry a 1-year manufacturer warranty. For warranty claims, returns, or troubleshooting support, visit the Warranty & Returns page or the Troubleshooting guide.