IVARONAL 31mm Flange Pump Parts – Compatible with Spectra S1/S2 (10-Piece Replacement Set)

Discover a dependable replacement set for Spectra S1/S2 pumps with IVARONAL. This 10-piece kit delivers a complete, ready-to-use solution that supports comfortable, efficient pumping experiences without changing your routine.

A complete replacement kit

The kit includes 2 flanges (breastshields), 2 backflow protectors, 2 tubes, and 4 duckbill valves. Each piece is designed to fit securely, minimizing leaks and wobble so you can focus on your pumping session.

• 2 x flanges/breastshields
• 2 x backflow protectors
• 2 x tubes
• 4 x duckbill valves

Interchangeable with Spectra S1/S2

IVARONAL parts are designed to be interchangeable with Spectra S1/S2 components. They can work with Spectra flanges, backflow protectors, valves, and tubing, offering flexibility when you mix parts.

• Compatible with Spectra pump parts for S1 and S2
• Use familiar setups with IVARONAL replacements

Fit for many users

With 18 flange sizes ranging from 15 mm to 32 mm, you can select an option that feels comfortable for you. A snug, skin-friendly fit supports steady suction and reduces discomfort during longer sessions.

• 18 different sizes (15–32 mm)
• Size reference guide in product photos

Quality you can trust

The parts are made from food-grade silicone. They are BPA-free, soft, odorless, and skin-friendly, designed to minimize irritation while preserving a gentle, secure seal.

Care and maintenance

Easy to install, easy to clean. Rinse with soapy water, then with clean water. Avoid hard brushes and dishwasher. Clean thin tips with fingers for best results.

• Simple installation with a snug fit
• Hand-wash friendly; avoid dishwasher
• Regular cleaning helps maintain performance

Real-life use scenarios

Ideal for replacing worn components during busy days or when you need a quick refresh between sessions. The versatile set is designed to reduce the need for multiple purchases and to keep you pumping with confidence.