Momcozy Flange Insert for M9*4

Fine-tune your expression comfort and maximize your milk output using the Momcozy 15mm and 19mm Flange Inserts Multi-Pack. Specifically curated for the next-generation Momcozy M9 Mobile Flow™ series and backward-compatible with legacy collection cups,

When utilizing the M9 pump’s high-efficiency 3rd-Gen motor (delivering hospital-strength suction up to -300mmHg), using an improperly fitted flange can pull elastic areola tissue into the tunnel. This pinches the milk ducts and restricts flow. By sliding these ultra-soft silicone reducers directly into the M9’s standard 24mm DoubleFit™ Flange, you instantly minimize friction, center your nipples perfectly, and stimulate a faster, higher-volume letdown.

Key Product Features

• Tailored for the M9 Mobile Flow™ (M9*4 Blueprint): Explicitly optimized to snap securely into the drop-shaped Momcozy M9 (Mobile Flow™) collection cups. The seamless lip prevents air pressure drops, ensuring that the app-controlled Milk Boost™ and Milk Relief™ modes operate at maximum efficiency.

• Dual-Sized Sizing Versatility: Nipple dimensions naturally fluctuate before, during, and after a pumping session, or between the left and right breasts. This combo pack provides two distinct sizing pathways to ensure a perfect fit:

  • 15mm Inserts: Precision-engineered for smaller nipple diameters measuring 11mm to 12mm before pumping.

  • 19mm Inserts: Precision-engineered for mid-range nipple diameters measuring 15mm to 16mm before pumping.

• Protects Sensitive Areola Tissue: By reducing the tunnel width down to your exact anatomical match, the insert blocks extra breast tissue from dragging inside. This eliminates pinching, protects delicate skin, and prevents friction blisters.

• Premium DoubleFit™ Liquid Silicone: Crafted from hypoallergenic, velvety-soft liquid silicone that mimics an infant’s soft natural latch. It contours comfortably to your skin, absorbing vibrations from the motor to create a soothing, pain-free pumping rhythm.

• Convenient 4-Pack Configuration: Includes 4 pieces total . This offers a highly economical solution that lets you outfit a double-pumping setup simultaneously or keep sterile backups inside your travel bag for hassle-free pumping at work or on the go.

• 100% Safe & Toxin-Free Material: Your baby’s health is paramount. These inserts are completely free from BPA, BPS, PVC, phthalates, and latex, keeping your expressed breast milk pure, clean, and safe for storage.

Technical Specifications

Catalog Attribute	Specification Data
Product Identifier	Momcozy Flange Insert Multi-Pack (15mm & 19mm Combo)
Insert Tunnel Sizes	15mm (Extra Small) / 19mm (Medium)
Base Shield Fitment	Slides securely into standard 24mm or 27mm silicone flanges
Pump Model Compatibility	Momcozy M9 Mobile Flow™, M5, S9 Pro, S12 Pro, V1, V2
Material Composition	100% Food-Grade, High-Flexibility Liquid Silicone
Package Quantity	4x Pieces per Box (Double sets of each size)
Safety Certifications	CPC (Children’s Product Certified), FDA-Compliant Materials

Installation, Sizing & Maintenance Guidelines

How to Check Your Perfect Fit:

The Nipple Measurement Rule: Measure only the diameter of your nipple base using a flange ruler before you begin pumping. Do not include your areola.

• If your base diameter is 11–12mm, install the 15mm insert.

• If your base diameter is 15–16mm, install the 19mm insert.

• Tip: If your nipple rubs against the walls during a session, move up a size; if your areola pulls into the tunnel, move down a size.

Clean & Care Protocol:

Gently push the selected insert into the central tunnel of your M9 DoubleFit™ Flange until the outer rim sits completely flush. Wash thoroughly with warm, soapy water after every session. These premium silicone parts are safe for high-temperature steam or boiling water sanitization (100ْC/ 212ْF) for 3 to 5 minutes.

To maintain maximum suction efficiency, replace your silicone inserts every 2 to 3 months, as constant stretching from the pump motor will naturally degrade the silicone’s elasticity over time.