---
title: "spectra backflow protector — Niche Verdict: Skip it (43/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/baby-products/spectra-backflow-protector"
last_updated: "2026-07-13T22:44:06.211Z"
locale: en
meta:
  description: "brand-locked demand (top 5 brands take 100% of clicks) — spectra backflow protector doesn't clear our bar today."
  "og:description": "brand-locked demand (top 5 brands take 100% of clicks) — spectra backflow protector doesn't clear our bar today."
  "og:title": "spectra backflow protector — Niche Verdict: Skip it (43/100) | Amazon United States - Flapen"
---

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# **spectra backflow protector**

**Skip it**

Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.

Market size 52Growth 34Conversion 100Competition 20Returns 73Price range 60Avg price 61Brand share 0Review moat 42Quality gap 21

**Conversion**

**Incredible****22.0%**

search→purchase rate — share of searches ending in a sale

**Returns**

**Good****2.1%**

return rate — above 6% kills the launch gate

**Avg price**

**Good****$13.26**

avg listing price — sweet spot $15–$100

**Price range**

**Good****$8.95–$24.16**

cheapest to priciest tracked listing — scored on the share inside $15–$100

**Market size**

**Good****$319K**

$319K/yr · 109K searches

**Review moat**

**Okay****2,258.23**

avg incumbent reviews — the moat a new listing must climb

**Growth**

**Okay****+7.3%**

90-day search growth — must beat 0% to launch

**Quality gap**

**Bad****4.7★**

avg incumbent rating — lower means beatable quality

**Competition**

**Bad****76%**

top-5 click share — a locked-up shelf

**Brand share**

**Bad****100%**

top-5 brand share — brand-locked demand

## **Competition**

The top 5 products capture 76% of clicks — a locked-up shelf that new listings rarely crack.

**Brands**

**5 **▲rising

**Sellers**

**9**

**Top-5 brand share**

**100%**

**Open market**

**0%**

- Maymom37% - PUMPMOM-US35% - SPECTRA23% - KAIYIV3% - NENESUPPLY2% - Open — no brand owns it (0%)

## **Product shelf**

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%10%$32K20%$64K30%$96K40%$127K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 13 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![PumpMom-us Backflow Protector for Spectra Replacement Breast Pump Backflow Protector for Spectra S1 S2 9 Plus SG Breastpumps Pump Parts BPA Free](https://m.media-amazon.com/images/I/31FnIsmo+NL.jpg)**PumpMom-us Backflow Protector for Spectra Replacement Breast Pump Backflow Protector for Spectra S1 S2 9 Plus SG Breastpumps Pump Parts BPA Free**PUMPMOM-US**$8.95**4.7★181 rev](https://www.amazon.com/dp/B0CKDZ15DY) [2![Maymom Backflow Protector Compatible with Spectra S2 S1 and 9 Plus Syngergy Gold Breastpump Not Original Spectra Backflow Protector Replacement Pump Parts S2 Accessories](https://m.media-amazon.com/images/I/41nESoouH0L.jpg)**Maymom Backflow Protector Compatible with Spectra S2 S1 and 9 Plus Syngergy Gold Breastpump Not Original Spectra Backflow Protector Replacement Pump Parts S2 Accessories**Maymom**$9.72**4.8★2,838 rev](https://www.amazon.com/dp/B01BREQFME) [3![Backflow Protector Replacement Part for Breast Milk Pump - Breastfeeding Support Essential - Compatible with Spectra Breast Pumps 2 Pack](https://m.media-amazon.com/images/I/31YTX3KAnHL.jpg)**Backflow Protector Replacement Part for Breast Milk Pump - Breastfeeding Support Essential - Compatible with Spectra Breast Pumps 2 Pack**SPECTRA**$20.55**4.8★4,931 rev](https://www.amazon.com/dp/B0F67LKRRW) [4![Backflow Protector Replacement Part for Breast Milk Pump - Breastfeeding Support Essential - Compatible with Spectra Breast Pumps](https://m.media-amazon.com/images/I/31a307NPTHL.jpg)**Backflow Protector Replacement Part for Breast Milk Pump - Breastfeeding Support Essential - Compatible with Spectra Breast Pumps**SPECTRA**$10.19**4.8★4,931 rev](https://www.amazon.com/dp/B072F9HL53) [5![PumpMom-us Backflow Protector and Tubing for Spectra Replacement Breast Pump Parts for Spectra S1 Spectra S2 Spectra 9 Plus (Not Original Spectra S2 Accessories)](https://m.media-amazon.com/images/I/41HEQflECrL.jpg)**PumpMom-us Backflow Protector and Tubing for Spectra Replacement Breast Pump Parts for Spectra S1 Spectra S2 Spectra 9 Plus (Not Original Spectra S2 Accessories)**PUMPMOM-US**$11.51**4.8★2,661 rev](https://www.amazon.com/dp/B08PTVLLWQ)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![Spectra Baby Spectra Premier Wearable Duckbill Valve & Backflow Protector Replacement Kit - Durable BPA-Free Accessory - 2 Valves & 2 Backflow Protectors](https://m.media-amazon.com/images/I/21DeTqDJTJL.jpg)**Spectra Baby Spectra Premier Wearable Duckbill Valve & Backflow Protector Replacement Kit - Durable BPA-Free Accessory - 2 Valves & 2 Backflow Protectors**SPECTRA**$24.16**31 rev9mo ago](https://www.amazon.com/dp/B0FTMP56PG) [![KAIYIV 4 pcs Backflow Protector Compatible with Spectra S2 S1 and 9 Plus Not Original Spectra Backflow Protector Replacement Pump Parts S2 Accessories](https://m.media-amazon.com/images/I/41dmiDmF9zL.jpg)**KAIYIV 4 pcs Backflow Protector Compatible with Spectra S2 S1 and 9 Plus Not Original Spectra Backflow Protector Replacement Pump Parts S2 Accessories**KAIYIV**$9.70**14 rev1y ago](https://www.amazon.com/dp/B0FFNFHGT1) [![Backflow Protector Replacement Part for Breast Milk Pump - Breastfeeding Support Essential - Compatible with Spectra Breast Pumps 2 Pack](https://m.media-amazon.com/images/I/31YTX3KAnHL.jpg)**Backflow Protector Replacement Part for Breast Milk Pump - Breastfeeding Support Essential - Compatible with Spectra Breast Pumps 2 Pack**SPECTRA**$20.55**4,931 rev1y ago](https://www.amazon.com/dp/B0F67LKRRW) [![Maymom Pump Parts Compatible with Spectra S1 S2 9 Plus Breastpump Replace Backflow Protector Membrane Duckbill Valve Tube Not Original Spectra Replacement Pump Parts](https://m.media-amazon.com/images/I/41lNxX1iuWL.jpg)**Maymom Pump Parts Compatible with Spectra S1 S2 9 Plus Breastpump Replace Backflow Protector Membrane Duckbill Valve Tube Not Original Spectra Replacement Pump Parts**Maymom**$17.49**832 rev2y ago](https://www.amazon.com/dp/B0CWG8T5M1) [![Maymom Silicone Membrane Diaphragm Designed for Spectra S1 S2 9 Plus Breastpump Backflow Protector Also for Maymom Backflow Protector Long Medium Short Stem Not Original Spectra Accessories Pump Part](https://m.media-amazon.com/images/I/41zlwozq4qL.jpg)**Maymom Silicone Membrane Diaphragm Designed for Spectra S1 S2 9 Plus Breastpump Backflow Protector Also for Maymom Backflow Protector Long Medium Short Stem Not Original Spectra Accessories Pump Part**Maymom**$12.95**638 rev2y ago](https://www.amazon.com/dp/B0CKXYSB6F)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![Spectra Baby Spectra Premier Wearable Duckbill Valve & Backflow Protector Replacement Kit - Durable BPA-Free Accessory - 2 Valves & 2 Backflow Protectors](https://m.media-amazon.com/images/I/21DeTqDJTJL.jpg)**Spectra Baby Spectra Premier Wearable Duckbill Valve & Backflow Protector Replacement Kit - Durable BPA-Free Accessory - 2 Valves & 2 Backflow Protectors**SPECTRA**$24.16**4.5★**▲ 194%**](https://www.amazon.com/dp/B0FTMP56PG) [![KAIYIV 4 pcs Backflow Protector Compatible with Spectra S2 S1 and 9 Plus Not Original Spectra Backflow Protector Replacement Pump Parts S2 Accessories](https://m.media-amazon.com/images/I/41dmiDmF9zL.jpg)**KAIYIV 4 pcs Backflow Protector Compatible with Spectra S2 S1 and 9 Plus Not Original Spectra Backflow Protector Replacement Pump Parts S2 Accessories**KAIYIV**$9.70**4.0★**▲ 96%**](https://www.amazon.com/dp/B0FFNFHGT1) [![Backflow Protector Replacement Part for Breast Milk Pump - Breastfeeding Support Essential - Compatible with Spectra Breast Pumps 2 Pack](https://m.media-amazon.com/images/I/31YTX3KAnHL.jpg)**Backflow Protector Replacement Part for Breast Milk Pump - Breastfeeding Support Essential - Compatible with Spectra Breast Pumps 2 Pack**SPECTRA**$20.55**4.8★**▲ 75%**](https://www.amazon.com/dp/B0F67LKRRW) [![PumpMom-us Backflow Protector for Spectra Replacement Breast Pump Backflow Protector for Spectra S1 S2 9 Plus SG Breastpumps Pump Parts BPA Free](https://m.media-amazon.com/images/I/31FnIsmo+NL.jpg)**PumpMom-us Backflow Protector for Spectra Replacement Breast Pump Backflow Protector for Spectra S1 S2 9 Plus SG Breastpumps Pump Parts BPA Free**PUMPMOM-US**$8.95**4.7★**▲ 58%**](https://www.amazon.com/dp/B0CKDZ15DY) [![PumpMom-us Backflow Protector and Tubing for Spectra Replacement Breast Pump Parts for Spectra S1 Spectra S2 Spectra 9 Plus (Not Original Spectra S2 Accessories)](https://m.media-amazon.com/images/I/41HEQflECrL.jpg)**PumpMom-us Backflow Protector and Tubing for Spectra Replacement Breast Pump Parts for Spectra S1 Spectra S2 Spectra 9 Plus (Not Original Spectra S2 Accessories)**PUMPMOM-US**$11.51**4.8★**▲ 30%**](https://www.amazon.com/dp/B08PTVLLWQ)

**~~View all trending →~~**

## **Demand & seasonality**

Weekly Amazon search volume, last 104 weeks — +7.3% search growth over the last 90 days.

2K2KSpike '24Prime Day '25 seasonSepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.3×

## **Reviews**

What buyers praise and complain about, mined from review topics.

### **What buyers love **

**Quality-Overall**17%

*“Good quality”*

**Value For Money**14%

*“Totally worth it”*

**Size-Overall**13%

*“fit as expected”*

**Compatibility-Overall**11%

*“Compatible with my spectra gold”*

**Advertised Vs Actual Product**7%

*“Worked perfectly”*

**Durability**5%

*“Very durable”*

**Leak-Proof**4%

*“no leaks or issues during pumping sessions”*

**Correct Contents**3%

*“All the replacement parts seem to work properly except the tubing”*

**Ease Of Cleaning**3%

*“are easy to clean”*

**Portability**2%

*“I think this is intended for the wearable one”*

### **What buyers complain about **

**Functionality-Overall**16%

*“Did not work”*

**Size-Overall**14%

*“The fit was loose”*

**Advertised Vs Actual Product**8%

*“Not what I expected”*

**Value For Money**8%

*“Very pricey, so we usually order off brand to save a lot of money”*

**Quality-Overall**6%

*“Not as good as I wished”*

**Connectivity-Overall**6%

*“the connection to the spectra over time”*

**Defective Material/Parts**6%

*“I was so happy to find replacement parts after one of mine broke”*

**Durability**5%

*“May 15th the backflow broke”*

**Product Condition**3%

*“Previously opened”*

**Compatibility-Overall**2%

*“did not work with my spectra for some reason”*

### **Top return reasons **

**Size-Overall**27%

**Defective Material/Parts**17%

**Functionality-Overall**13%

**Advertised Vs Actual Product**10%

**Value For Money**6%

**Compatibility-Overall**5%

**Connectivity-Overall**4%

**Quality-Overall**3%

**Breastfeeding Friendly**3%

**Material Quality**2%