TOVVILD 17mm Flange for Spectra S2/S1 9 Plus – Duckbill Valves & Wide-Mouth Compatibility

Flexible flange system designed for comfort and versatility

TOVVILD offers a 6-piece replacement set built to pair with Spectra pumps (S1, S2, 9 Plus) and popular wide-mouth bottles, including brand-name options. The kit centers on two 17mm flanges and four duckbill valves, with sizing options that accommodate a nipple diameter around 13–15 mm. While these are replacement accessories and not the original Spectra parts, they’re designed to support a smooth pumping routine and a comfortable grip during expression.

The aim is to provide a practical, user-friendly option that fits into daily pumping routines without sacrificing bottle compatibility or ease of cleaning.

What’s included

• 2 x 17 mm flanges (for nipple diameters around 13–15 mm)
• 4 x duckbill valves for reliable sealing and repeated use

Compatibility and fit

• Designed to fit Spectra pumps and connect directly to most wide-mouth bottles, including Spectra, Philips Avent, and other brands
• Replace Spectra flange and Spectra duckbill valve parts to expand setup options

Care, safety, and cleaning

• BPA-free materials suitable for cleaning with water steam, boiling water, or microwave-steam bags
• Durable construction intended for regular sanitation and repeated use

Performance and daily use

When the flange size is well matched, the pumping process can feel more comfortable and steady, potentially improving expression flow and reducing rubbing or pressure points. The option to choose from multiple sizes helps you experiment with a fit that aligns with your routine, bottle stability, and valve alignment.

As a compatible replacement, this set may offer practical benefits like easier bottle transfers and consistent venting through the duckbill valves. These factors contribute to a smoother pumping session and a convenient way to refresh or adjust your setup mid-week.

Material, design, and support

The 17mm flange features a smooth, contoured edge and interior to minimize friction, while the duckbill valves are designed for reliable sealing and straightforward maintenance. This combination supports everyday pumping needs and travel-friendly use without relying on original parts.