Backflow Protector

Name: Spectra Baby USA Backflow Protector - Backflow Protector
Brand: Spectra Baby USA
SKU: 49980689613119
Price: 10.49 USD
Availability: InStock
Rating: 4.9 (1 reviews)

4.5 (1,234)

Sold 100+ last 30 days

20% off first order

$10.49

Quantity

Color

Black

Quantity

The Spectra® Backflow Protector is compatible with Spectra® S1, S2, 9 Plus, and Synergy Gold breast pumps and replaces the original backflow protector that came with each pump.
Features:

Key component of the Spectra® closed-system
Helps maintain proper performance of breast pump
Prevents breastmilk from entering breast pump motor

4.9

10 ratings

Should come in a two pack

Kylee · August 14, 2026

Spectra Baby USA

4.7 (154)

Product description loading

This is the product description text that will appear here.

Spectra Baby USA

Duckbill Valves Set

(11)

$14.99

Spectra Baby USA

Wearable Duckbill Valve & Backflow Protector Replacement Kit

(1)

$24.99

Spectra Baby USA

SG Replacement Tubing with Adapter Ends Set

(1)

$14.99

Woman wearing the beige Signature Sublime® Contour Hands-Free Pumping & Nursing Bra against a neutral background@model_info:Amber is wearing a Medium.

Exclusive offer available

Kindred Bravely

Signature Sublime® Contour Hands-Free Pumping & Nursing Bra | Beige

(193)

$69.90

Spectra Baby USA

S1 Plus Premier Rechargeable Double Electric Breast Pump

(14)

$225.99

Spectra Baby USA

Synergy Gold® Double Adjustable Electric Breast Pump

(7)

$279.99

Spectra Baby USA

Conical Nipple Shield

$18.59

momcozy

4.4

(25.2K)

Model in light taupe Ultra Soft Seamless Nursing Bra. Comfortable, with silver clips. Award-winning, M5 pump compatible.

Spectra Baby USA

Pumping On-the-Go 9 Plus Breast Pump & CaraCups Wearable Milk Collection Hands-Free Inserts

$224.99

eufy

eufy Diaphragm (2-Pack) for Breast Pump E10/E20/S1/S1 Pro

(46)

$19.99

43% off

momcozy

M6 Wearable Breast Pump Replacement Parts

(88)

$24.99$43.99

Woman wearing the Simply Sublime® Nursing Bra in beige@model_info:Amber is wearing a Medium.

Exclusive offer available

Kindred Bravely

Simply Sublime® Nursing Bra | Beige

(507)

$52.90

Spectra Baby USA

S1 Plus Rechargeable Pump Bundle - Tote & Pink Cooler

(1)

$276.99

Spectra Baby UK

Premium Spectra Backflow Protector

(4)

$7.00

eufy

eufy 24 mm Flange (2-Pack) for Breast Pump E20/S1/S1 Pro

(28)

$59.99

Spectra Baby USA

Replacement Tubing

(5)

$11.49

Spectra Baby USA

Wide Breast Flange Set

(8)

$29.99

Spectra Baby USA

CaraCups Duckbill Valve Replacement Set

(3)

$15.49

Legendairy Milk

4.6

(20.6K)

Silicone Collection Cups - Legendairy Milk

Flange Inserts (15mm, 17mm, 19mm and 21mm options) - Legendairy Milk

Flange Sizing Starter Kit - Legendairy Milk

Spectra Baby USA

Simple Store Milk Collection Bags Starter Kit – 10ct

(2)

$27.99

Spectra Baby UK

Silicone Membrane - Designed for Spectra S1 Spectra S2, 9 Plus Backflow Protector & Maymom Backflow Protectors

(3)

$11.00

Spectra Baby USA

Cherry-Shaped Nipple Shield

$18.59

WOman wearing the Sublime® Hands-Free Pumping & Nursing Bra in Pink Heather@model_info:Cassie is wearing a Medium.

Exclusive offer available

Kindred Bravely

Sublime® Hands-Free Pumping & Nursing Bra | Pink Heather

(422)

$54.90

Spectra Baby USA

S1 Plus Rechargeable Pump Bundle – Tote & Premium Accessories

(1)

$276.99

eufy

eufy Duckbill Valves (4-Pack) for Wearable Breast Pump E10/E20/S1/S1 Pro

(36)

$19.99

Legendairy Milk

Spare Backflow Protectors

(155)

$12.99

Woman wearing the French Terry Racerback Nursing & Sleep Bra in black against a neutral background@model_info:Ionna is wearing a 1X Busty.

Exclusive offer available

Kindred Bravely

French Terry Racerback Nursing & Sleep Bra | Black

(919)

$39.90

Spectra Baby USA

Ultimate Bundle

$399.99

Model with her hand in her hair wearing the Sublime® Hands-Free Pumping & Nursing Sports Bra in Ombre Purple. @model_info:Lisa is wearing a Small

Exclusive offer available

Kindred Bravely

Sublime® Low Impact Pumping & Nursing Sports Bra | Ombre Purple

(182)

$29.98$54.90

eufy

eufy Milk Container (2-Pack) for Wearable Breast Pump E20/S1/S1 Pro

(31)

$29.99

Kindred Bravely

4.6

(44.2K)

Model wearing the Sublime® Hands-Free Pumping & Nursing Bra in Beige.@model_info:Brittany is wearing an X-Large.

Front view of model wearing Sublime Hands-Free Pumping & Nursing Bra in Vintage Blue on a pink background@model_info:Alana is wearing a Large.

Woman wearing the Sublime® Bamboo Hands-Free Pumping Lounge & Sleep Bra in Oatmeal Heather @model_info:Lisa is wearing a Small.

Model wearing the French Terry Racerback Nursing & Sleep Bra. @model_info: Lauren is wearing an X-Large Busty.

Spectra Baby USA

CaraCups Backflow Protector Replacement Kit

(1)

$18.49

Spectra Baby USA

Handy Plus Manual Breast Pump

$30.49

Model wearing Sublime® Bamboo Hands-Free Pumping Lounge & Sleep Bra in Light Navy against a neutral background@model_info:Linda is wearing a Medium Busty.

Exclusive offer available

Kindred Bravely

Sublime® Bamboo Hands-Free Pumping Lounge & Sleep Bra | Light Navy

(30)

$54.90

Spectra Baby USA

Disposable Milk Collection Bags

(1)

$13.99

Exclusive offer available

WellBefore

SpeCtra Breast Pump Accessory Kit

$29.98

Spectra Baby USA

Wearable Feeding & Accessories Kit

(1)

$34.99

Flat lay of the Organic Bamboo Reusable Nursing Pads set of ten on a beige background.

Exclusive offer available

Kindred Bravely

Organic Bamboo Reusable Nursing Pads | Ivory

(590)

$16.90

Spectra Baby USA

S2 Plus Electric Pump Bundle – Tote & Premium Accessories

$219.99

45% off

Willow Pump

Willow Sizing Insert Set (2-pack)

(801)

$10.99$19.99

Ana Wiz

Silicone Membrane; Designed for Spectra S1 Spectra S2, 9 Plus Backflow Protector and Maymom Backflow Protectors

(2)

$13.00

Ninni Co.

4.4

(8.5K)

Spectra Baby USA

9 Plus Portable Pump Bundle – Tote & Pink Cooler

$179.79

Black and Oatmeal Heather pumping sleep bras on a light beige background

Exclusive offer available

Kindred Bravely

Sublime® Pumping Sleep Bra Two-Pack | Black & Oatmeal Heather

(20)

$94.95

momcozy

Natural Breast Pump Wipes - Safe & Convenient

(102)

$18.99

Spectra Baby USA

Wide Breast Flange Single

(27)

$14.99

Rainy day essentials

Rain jackets, stroller covers, and boots.

Spectra Baby USA

Pink Cooler with Ice Pack and Wide Neck Bottles Kit

(3)

$34.99

Front view of model wearing Sublime Bamboo Hands-Free Pumping Lounge & Sleep Bra in Lavender on a pink background@model_info:Alana is wearing a Large.

Exclusive offer available

Kindred Bravely

Sublime® Bamboo Hands-Free Pumping Lounge & Sleep Bra | Lavender

(23)

$29.98$54.90

Spectra Baby USA

Simple Store Replacement Milk Collection Bags – 30ct

(2)

$18.49

42% off

Mom and Baby Shop

Spectra Flange

$7.49$12.99

Spectra Baby USA

On-the-Go Plus Synergy Gold® Portable Breast Pump & CaraCups Wearable Milk Collection Hands-Free Inserts

$325.00

Woman wearing Sublime® Bamboo Hands-Free Pumping Lounge & Sleep Bra in Twilight against a neutral background@model_info:Amber is wearing a Medium.

Exclusive offer available

Kindred Bravely

Sublime® Bamboo Hands-Free Pumping Lounge & Sleep Bra | Twilight

(184)

$54.90

Spectra Baby USA

Synergy Gold® Portable Pump Bundle – Tote & Pink Cooler

$375.99

eufy

eufy Wearable Breast Pump S1 Pro

(224)

$349.99

Exclusive offer available

WellBefore

Spectra S2 Plus Electric Breast Pump Kit with Backflow Protectors

(2)

$166.98

Woman wearing the Sublime® Hands-Free Pumping & Nursing Bra in Twilight against a plain background@model_info:Ionna is wearing a 1X Busty.

Exclusive offer available

Kindred Bravely

Sublime® Hands-Free Pumping & Nursing Bra | Twilight

(336)

$54.90

Woman wearing the Sublime® Bamboo Maternity & Nursing Longline Bra Top in Oatmeal Heather and black pants against a plain background@model_info:Amber is wearing a Medium.

Exclusive offer available

Kindred Bravely

Sublime® Bamboo Hands-Free Pumping Longline Bra Top | Oatmeal Heather

(23)

$46.90

Bodily

4.6

(8.2K)

Pregnant model wearing a black nursing bra and matching bottoms, labeled as Alessandra, 36 weeks pregnant, 34B, size small. Shown in Black.

The Do Anything Bra is a hands-free pumping and nursing bra made with a lactation consultant, and designed to let you feel like you. Shown in Dusk.

A Stage 1 pull-down maternity-through-nursing bralette – but make it chic with a triangle silhouette. Shown in Black.

Reusable and slip-resistant nursing pads are ultra-absorbent for day or overnight leak protection.

Spectra Baby USA

Premium Accessory Kit Replacement Parts

(22)

$34.99

Spectra Baby USA

Breast Pump Air Cap Set

(3)

$4.99

Spectra Baby USA

CaraCups Wearable Milk Collection Hands-Free Inserts

(5)

$67.79

Exclusive offer available

Kindred Bravely

Sublime® Hands-Free Pumping & Nursing Bra | Beige

(2K)

$54.90

Spectra Baby USA

Small to Wide Neck Milk Bottle Cap Adapter

$10.29

Bottle-feeding favorites

Bottles, drying racks, and formula prep.

Spectra Baby USA

9 Plus Premier Portable Rechargeable Breast Pump

$197.99

Model is wearing the Sublime Hands-Free Pumping & Nursing Sports Bra in Black on a beige background. @model_info:Sahana is wearing a Busty Small.

Exclusive offer available

Kindred Bravely

Sublime® Low Impact Pumping & Nursing Sports Bra | Black

(206)

$34.98$54.90

Spectra Baby USA

S2 Plus Electric Pump Bundle - Tote & Pink Cooler

$219.99

Love and Fit

Everyday Luxe® 3.0 Nursing & Hands-Free Pumping Bra for Breastfeeding Moms

(254)

$51.00

Spectra Baby UK

Spectra Air Cap

$4.00

Woman wearing the Signature Sublime® Contour Hands-Free Pumping & Nursing Bra in Black @model_info:Lisa is wearing a Small.

Exclusive offer available

Kindred Bravely

Signature Sublime® Contour Hands-Free Pumping & Nursing Bra | Black

(86)

$69.90

Woman wearing the Sublime® Bamboo Hands-Free Pumping Lounge & Sleep Bra in Deep Burgundy@model_info:Kyra is wearing a Small.

Exclusive offer available

Kindred Bravely

Sublime® Bamboo Hands-Free Pumping Lounge & Sleep Bra | Deep Burgundy

(30)

$54.90

The Pumping Solution