MOOMentaneous 18mm Flange & Duckbill Valve — Replacement Parts for Spectra S1/S2 and 9 Plus

MOOMentaneous replacement kit for Spectra pumps

Meet the MOOMentaneous 18mm flange and duckbill valve set, a practical non-original replacement option designed to fit Spectra S1/S2 and 9 Plus series. The kit emphasizes simple care and reliable replacement between pumping sessions. Built as a single piece, the flange and valve components are straightforward to clean and sanitize, supporting quick turnaround between uses.

One-piece construction is paired with flexible silicone-like components to help reduce snag points during assembly and disassembly. The parts can be sanitized using water steam, boiling water, or microwave steam bags, offering versatile cleaning methods that many caregivers appreciate during busy days or travel. This kit includes two 18mm flanges and two duckbill valves, giving you a ready-to-use replacement set rather than individual parts you must assemble.

Fit and sizing are important for comfort and performance. The MOOMentaneous kit is available in a wide range of sizes from 15mm to 28mm, giving you options to tailor the fit to your preferences. If you’re unsure which size to choose, refer to the size selection guide shown in the product subpicture to compare measurements and identify the closest match. If you have questions about fit, MOOMentaneous offers responsive support, with responses typically provided within 24 hours.

• One-piece construction simplifies cleaning and sanitizing between sessions
• Includes 2x 18mm flanges and 2x duckbill valves compatible with Spectra S1/S2 and 9 Plus
• Available in sizes from 15mm through 28mm for a customizable fit

While these are not original Spectra parts, they are designed to meet common usage needs and offer a cost-effective alternative. In daily use, you may notice easier maintenance, straightforward replacement during busy days, and reliable valve action during pumping sessions. The emphasis is on practical care and fit, with no guarantees implied — outcomes can vary based on individual setups and usage patterns.

Real-world use scenarios

Whether you’re juggling late-night pumping, traveling, or refreshing your kit between sessions, a clean, easy-to-sanitize replacement set can save time and reduce stress. The MOOMentaneous kit focuses on a smooth workflow: simple assembly, quick cleaning, and predictable valve action, all while offering multiple size options to help you find a comfortable fit.