Top 10 Best 17mm flange spectra in 2026

Last Updated - 6/17/2026

🏆Best Choice

Momstouch

Momstouch 17mm Flange and Duckbill Valve Compatible with Spectra S1 S2 9 Plus Breastpump Replacement to Pump Parts, Not Original, Replace Accessories.

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•CONTENTS: 2pc 17mm flanges and 2pc duckbill valves compatible with Spectra S1, S2 and 9 Plus breastpump. Made by Momstouch. Not original Spectra accessories. Replace Spectra flanges and Duckbill Valves. Suitable for mother with a nipple diameter 13-15mm.
•COMPATIBLE AND INTERCHANGEABLE with Spectra pump parts. Momstouch pump parts perform the same suction power as OEM parts, Spectra pump parts and accessories.
•DUCKBILL VALVES EASY TO INSTALL AND REMOVE.
•MOMSTOUCH FLANGE can work with Spectra wide-mouth bottle, AVENT bottle and Momstouch widemouth bottle. Available flange sizes:13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 26mm, 27mm, 28mm, 29mm, 30mm.
•MATERIALS DO NOT CONTAIN ANY BPA. Can be sanitized with water steam, boiling water or microwave-steam bags.

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$16.99

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Suniceme

Suniceme Flange Inserts 17mm Compatible with Medela/Spectra/TSRETE/Elvie/Momcozy/Bellababy Breast Pump 24mm Shields/Flanges, Reduce 24mm Nipple Tunnel Down to 17 mm, 4PCS

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•Suniceme flange inserts 17mm are breast pump accessories that fit most 24mm Shields/Flanges. It will reduce the 24-mm shield nipple tunnel down to 17 mm.
•Compatible with Momcozy/TSRETE/Medela/Spectra/Elvie/kmaier/Phanpy/Bellababy/NaNaLazy/KISSBOBO/Motif Luna/Ameda MYA wearable breast pump 24mm shields/flanges (Not for 27mm shields).
•BPA Free, made of food-grade silicone material, safe for mothers and babies. The Flange Inserts can be sanitized with water steam or boiling water. The pump parts can be cleaned with warm soapy water. It is recommended that you replace the parts every 1 to 2 months.
•Correct size flange inserts help moms pump more comfortably and efficiently. It is normal to feel your nipples swelling while pumping, so we suggest observing the appearance of the nipples during the milking process.
•If you do not have a good experience during pumping, Suniceme flange inserts for different nipple sizes would be a great solution for you.

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$8.99

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Maymom

Maymom Wide Neck Pump Part Compatible wtih Spectra S1/S2 Pumps; Incl Wide Mouth Flange; Not Original Spectra Flange (17 mm Two Flanges)

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•Maymom flange, not spectra flange or spectra USA product. It will NOT fit every mother. See picture (size chart) for details. Contains 2x 17mm widemouth flanges for spectra s1 plus pump, s2 plus pump, 9 plus pump and Motiff Luna, Ameda Mya pumps. Suitable for mother with a niple diameter 15-16mm (measured AFTER a pumping session). Talk to your lactation consultant before purchase.
•BPA free, DEHP free; Complies with US FDA regulation for plastics that contact foods.
•Compatible with spectra wide mouth bottles, AVENT bottles, and Maymom wide mouth bottles. They are NOT compatible with OTHER wide mouth bottles.
•Made by Maymom, not original spectra company. Maymom is not affiliated with Uzinmedicare, the trademark owner of spectra.
•Dishwasher toprack safe; Steam safe for clean.

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$16.99

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Maymom

17mm Maymom Wide Neck Pump Part for Spectra S1/S2 Pumps; Incl Wide Mouth Flange; Not Original Spectra Flange; Replaces 16 mm Spectra Shield; Standard Flange

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•Contains ONE Flange. Buy two units if you pump on both breasts at the same time. 1x 17mm wide mouth flange compatible with spectra s1 pump, s2 pump and 9 pump. Suitable for spectra s2 accessory replacement.
•BPA free; Complies with US FDA regulation for plastics that contact foods
•Works with spectra wide mouth bottles, AVENT bottles, and Maymom wide mouth bottles. They are NOT compatible with OTHER wide mouth bottles.
•Made by Maymom, not original spectra company. Maymom is not affiliated with Uzinmedicare, the trademark owner of spectra.
•Dishwasher toprack safe; Steam safe sterilization;

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$8.99

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Luxemum

Breast Pump Parts for Spectra S1/S2/13 Plus, Not Original Accessories, Spectra Flange Inserts Replacement Include 17mm Flange/Duckbill Valve

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•Luxemum Compatible Pump Replacement Parts for Breast Pumps: Complete Kit Includes 2 Flanges, 2 Duckbill Valves. Note: These are Luxemum-manufactured parts, not original Spectra accessories
•Compatible and Interchangeable with Spectra Pump Parts: Verified by engineers, delivers the same suction power as OEM parts and Spectra S1 accessories
•Luxemum Breast Pump Parts - Safe for Mom and Baby: Made from 100% food-grade silicone, BPA-free, and skin-friendly. Easily sterilize with steam or boiling water. All replacement parts are securely sealed and packaged by Luxemum in retail-ready packaging
•Luxemum Important Notices: Allow silicone parts to cool after sterilization before assembly to extend the lifespan of your accessories, as silicone's elasticity can be affected by heat
•Regularly Replacing Pump Parts is essential: Before first use, disinfect by boiling for three minutes. For daily cleaning, use mild soapy water and rinse thoroughly. Avoid abrasive brushes, and do not place parts in the dishwasher
•Customer Service: If you receive the wrong product, please contact us for a replacement. Luxemum’s customer service team is dedicated to ensuring you have the best shopping experience

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$9.99

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Hranio

17mm Flange Insert 6PC, Compatible with 17mm Flange Spectra/Flange Inserts for Spectra/Momcozy Flange Inserts/Momcozy Wearable Breast Pump Flange Insert/Flange Inserts for Medela Pump/Willow/TSRETE

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•Compatibility: The Flange Inserts 17mm are breast pump accessories that can be used with most 24mm Shields/Flanges.Compatible with any S9 Pro/S12 Pro/S9/S12 wearable breast pump. (For example, compatible with Momcozy S12 Pro/S9 Pro/S12/S9 Hands-Free breast pump). Use with 24mm breast Shields for TSRETE/Medela/Spectra/Elvie/Willow/Bellaaby/Motif Luna/Ameda MYA/Ainsir/Phanpy/Lulia/NaNaLazy/Luxlady/kidzio/eulumap/Teexin/Fisroa/KISSBOBO/Goldeep/BIOBOO/Mumeasy/Nanawawa/TOVVILD/CPPSLEE and others.
•Attention: These breast pump accessories are only suitable for 24mm Shields/Flanges and cannot be used with other sizes of Shields/Flanges. Using coconut oil or nipple butter can reduce friction and make them easier to use.
•Easy Cleaning: After each use, wash the replacement pump parts with warm soapy water and rinse them thoroughly.
•Safety: Made of transparent silicone material,our product is BPA-free,you can use it with confidence.
•Replacement: The size of your flange insert is crucial for both comfort and efficient pumping. Some moms may experience nipple swelling while pumping, so it's important to monitor the appearance of the nipple during pumping. It is recommended to replace the flange insert every 1 to 2 months. Please ensure you choose the correct size.

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$9.99

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Maymom

2X 17 mm Maymom Wide Neck Pump Parts Compatible with Spectra S1/S2 Pumps; Incl Wide Mouth Flanges; Not Original Spectra Flange; Replaces Spectra Shield (Two Small Flanges)

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•Contains 2x 17mm Maymom widemouth flanges compatible with spectra s1 pump, s2 pump and 9 pump. Suitable for mother with a nipple diameter 14-15 mm (measured AFTER a pumping session). Suitable for spectra s2 accessory replacement.
•BPA free; Complies with US FDA regulation for plastics that contact foods
•Compatible with spectra wide mouth bottles, AVENT bottles, and Maymom wide mouth bottles. They are NOT compatible with OTHER wide mouth bottles.
•Made by Maymom, not original spectra company. Maymom is not affiliated with Uzinmedicare, the trademark owner of spectra.
•Dishwasher toprack safe; Steam safe;

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$16.99

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NENESUPPLY

Nenesupply 17mm 2 pc Flanges Duckbill Valves Compatible with Spectra S2 S1 9 Plus Synergy Gold Breastpump Replacement to Spectra Pump Parts Flange Accessories Wide Mouth Work with Backflow Protector

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•CONTAINS 2 17mm FLANGES / Breastshields and 2 DUCKBILL VALVES. MADE BY NENESUPPLY. COMPATIBLE WITH SPECTRA S2, SPECTRA S1, SPECTRA 9 PLUS, AND SYNERGY GOLD BREASTPUMPS. Not Original Spectra S2 Flanges. Not original Spectra pump parts.
•WIDE MOUTH FLANGES. Compatible and Interchangeable with Spectra valves, Spectra backflow protectors, and Spectra bottles. Also work with Nenesupply bottles.
•The flange funnels have smooth angles and do not rub against nipples. It is comfortable while pumping. The flange tunnel is at least 32mm long. It is suitable for stretched nipples. DIFFERENT FLANGE SIZES AVAILABLE: 15mm, 17mm, 19mm, 21mm, 24mm, 27mm, 30mm.
•DUCKBILL VALVES ARE EASY TO INSTALL AND REMOVE. Maintain the same suction as Spectra duckbill valves. Made from food-grade silicone. Safely tested by independent labs.
•DISH WASHER SAFE (TOP RACK). Can be sterilized with boiling water, water steam, and microwavable bags. BPA Free, DEHP Free. Comply with FDA regulations for food contact materials. Tested by independent labs for safety.
•SAME SUCTION AS ORIGINAL PUMP PARTS. Backflow protectors fit securely on the flanges and form an air-tight seal. Bottles fit securely on the flanges.

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$16.99

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Maymom

Maymom 17mm Flange and Duckbill Valve Compatible with Spectra S1 Spectra S2 Spectra 9 Plus Not Original Spectra Pump Parts Replace Spectra S2 Pump Parts Spectra Flange Spectra Duckbill Valve

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•CONTENTS: 2x extra small 17mm flanges and 2x duckbill valves Compatible with Spectra S2, Spectra S1 and Spectra 9 Plus breastpump. Made by Maymom. Not Original Spectra Flanges, Spectra Duckbill Valve. Not for every mother. Talk to your lactation consultant before purchasing.
•COMPATIBLE AND INTERCHANGEABLE with Spectra pump parts. Maymom pump parts perform the same suction power as OEM parts, Spectra S2 pump parts, Spectra S1Plus accessories.
•MAYMOM DUCKBILL VALVES features "easier to plug in and remove", "durable quality" and "color options"
•MAYMOM FLANGE can work with Spectra wide-neck bottle (wide-mouth bottle), Compatible with Avent bottle, and Maymom widemouth bottle. Available Flange sizes:13mm, 15mm, 17mm, 19mm, 21mm, 24mm, 25mm, 27mm, 28mm, 29mm, 30mm, 32mm.
•BPA/DEHP FREE. FDA compliant for food contacts. Tested by independent lab. Test report online available for reference. Products in retail pack sealed by manufacturer; NO problem with dishwasher top rack, water steam cleaning, boiling water or microwave-steam bags.

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$19.99

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Maymom

Maymom Pump Parts Compatible with Spectra S2 S1 Replacement Pump Kit, 17mm Flange Valve Tube Bottle Backflow Protector, Not Original Spectra Replacement Pump Parts S2 S1 Accessories

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•The incl. 17mm flanges are not suitable for all mothers. Please refer to the size guidance in the product listing before purchase. Suitable for mothers with a niple diameter of 15–16mm (measured after pumping). Kit Contents: 2 Flanges (17mm), 2 Duckbill Valves, 2 Backflow Protectors, 2 Tubes, and 2 Bottles with One-Piece Travel Caps. Compatible with Spectra S2, Spectra S1, and Spectra 9 Plus breast pumps. Nipples and dome caps are not included in this kit.
•All pump parts made by Maymom. Not Original Spectra S2 Accessories. Not Original Spectra S1 Accessories. Not Original Spectra Pump Parts.
•Compatible and interchangeable with Spectra pump parts. Same suction power as OEM parts. Replace Spectra Flanges, Spectra Duckbill Valves, Spectra Backflow Protectors, Spectra Tubings, Spectra Bottles (Wide Mouth). Multiple flange sizes available: 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 27mm, 28mm, 30mm, 32mm.
•The One-piece cap of Maymom bottle includes sealing ring for secure seal. NO waste of milkdrop. Designed for travel and storage of formula or breast milk. It's also perfect to convert baby feeding bottle to snack container or tumbler for mommy.
•US FDA registered medical device (No. D192499), Health Canada License (No.26003), Australian Health and Aged Care (ID 463470). Inspected by US FDA. Comply with FDA/EU regulations for plastic materials that contact food. Test reports are conducted by independent lab and available online for reference.
•Made from BPA-free material. Can be cleaned with water steam, boiling water or microwave-steam bags. Retail packed, sealed by the manufacturer - Maymom, not Original Spectra parts.

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$32.99

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