eufy Security 24mm Flange (2-Pack) - Comfortable Replacement

In this review the reviewer examines the eufy Security 24mm Flange 2-Pack and its value as a replacement accessory for parents who own the E20, S1, or S1 Pro breast pumps. The bottom line: this pair of soft silicone flanges is meant for users who need a comfortable, ergonomic fit and want the convenience of easy cleaning and a warm pumping experience thanks to HeatFlow technology. It is a practical spare part for regular users, but longevity and occasional mixed impressions about durability are worth noting.

Key Features

• Compatibility: Designed exclusively for the eufy Breast Pump E20, S1 and S1 Pro to ensure correct fit and reliable suction when paired with those models.
• HeatFlow technology: Provides a gentle, warming effect during pumping sessions to help create a more comfortable and smooth experience.
• Soft food-grade silicone: The durable silicone flange keeps a tight seal on the milk collector and feels comfortable against the skin.
• Easy to clean: Safe to wash with warm soapy water and suitable for dishwasher, fridge, and freezer cleaning for quick maintenance.
• Third-party compatibility: Works with both eufy inserts and many third-party inserts so users can mix and match parts as needed.
• Warranty and lifespan: Covered by a 90-day limited manufacturer's warranty and typically replaced around the three-month mark if suction declines.

Who It's For

This 24mm flange is best for parents who already own an eufy E20, S1 or S1 Pro pump and need a like-for-like replacement or spare part that prioritizes comfort and seal integrity. It is especially useful for those who value easy cleaning and the warming benefit of HeatFlow technology during pumping sessions.

People who should look elsewhere include users with breast shields that require a different flange diameter, those who need heavy-duty long-term parts beyond the typical three-month lifespan, or shoppers seeking an interchangeable universal flange explicitly rated for all pump brands without checking fit first.

Pros & Cons

Pros

• Soft, food-grade silicone provides a comfortable feel and maintains a secure seal with the milk collector.
• HeatFlow technology adds warming comfort that can make pumping smoother for some users.
• Dishwasher-, fridge-, and freezer-safe design makes cleaning and storage convenient.
• Works with many third-party inserts, increasing flexibility when replacing parts.

Cons

• Some customers report mixed durability impressions, so expect to replace around three months depending on use.
• Compatibility is limited to eufy E20, S1 and S1 Pro models, so it is not universal for all pumps.

Specifications

Product type	24mm silicone flange (2-Pack)
Compatibility	eufy Breast Pump E20 / S1 / S1 Pro
Material	Food-grade silicone
Cleaning	Warm soapy water; dishwasher, fridge, and freezer-safe
Special feature	HeatFlow technology for soothing warmth
Warranty	90-day limited manufacturer's warranty
Typical lifespan	Approximately 3 months with regular use

Our Verdict

The eufy Security 24mm Flange 2-Pack is a sensible replacement for E20, S1 and S1 Pro owners who want a comfortable, easy-to-clean flange with the added benefit of HeatFlow warmth. It offers good functionality and flexibility with third-party inserts, making it a practical spare, though users should plan for routine replacement and be aware of mixed durability impressions.

Frequently Asked Questions

Will these flanges fit my pump?
They are compatible only with the eufy Breast Pump E20, S1 and S1 Pro models and are intended to work with those pumps and many third-party inserts.

How do I clean them?
Wash with warm soapy water and rinse well; they are dishwasher, fridge, and freezer-safe for quick cleaning and storage.

How long do they last?
The typical lifespan is around three months; replace sooner if suction or performance decreases.