The store will not work correctly in the case when cookies are disabled.
Bulk Reef Supply Saltwater Logo
Bulk Reef Supply Freshwater Logo

FREE Shipping Over $49

Free Shipping

Orders Over $49 Ship Free

$5.99 economy shipping on orders under $49

Learn More
| Earn Reward Points
Skip to Content
Menu BRS Freshwater
My Cart
    • My Account
    • My Wish List
    • My Orders
    • Address Book
    • Sign Out
    • Reward Points
  • Sign In
Bulk Reef Supply Mobile Menu
Close

Quick Links

  • Deals
  • Gift Cards
  • What's New
  • Education
  • Clearance
  • Open Box
  • PR Rewards
  • Shop Brands
  • FAQs
  • Saltwater
Menu
Fast Shipping Fast Shipping
Sign up to be a Reward Member Earn Reward Points
Returns 365-Day Returns
Experts Aquarium Experts
  • Fast Shipping Fast Shipping
  • Sign up to be a Reward Member Earn Reward Points
  • Returns Risk-Free 365 Day Returns
  • Experts Aquarium Experts
Loading...
Filter Media Cup

High Flow Flexible Filter Media Cup - 4 inch - Sea Foam White - Media Cup

In stock
Out of stock
SKU
250213
Be the first to review this product
$13.99 $13.99

- +
Add to Wish List
Risk Free 365 Returns

Your Satisfaction Guaranteed With
365 Day Risk Free Returns

No longer need what you ordered? Ordered one too many? We've got your back.


Return new, unopened products in original packaging within 365 days for a full refund.

Under 60 days? No problem. We’ll issue your refund to the original form of payment. Over 60 days? Still no problem. We'll issue your refund in the form of store credit, which you can use like cash on our website.


Return unused, open box products within 30 days.

Open box but still unused? We can help. We’ll issue your refund to the original form of payment minus a small 10% restocking and handling fee.

Some exclusions apply, for more information go to Return & Replacement Details.

Skip to the end of the images gallery
main product photo
Skip to the beginning of the images gallery
Details

High Flow Flexible Filter Media Cup 4 inch - Sea Foam White (Now Flexible & Slotted for Higher Flow)

Our 4" Filter Media Cup will replace all those filter socks you have hanging around. Made out of a BPA free Polypropylene, this 4" Filter Media Cup is a solid one-piece design, that holds any filter media. The opaque color will easily hide any blemishes that may occur from changing out filter media.

The round design allows the Cup to slide into place, regardless of which “side “slides in first. The cup fits most round filter sock holders intended for use with 4" diameter filter socks. An optional Filter Media Cup Adapter is available to accommodate C shaped filter sock holders or those with slightly larger diameter holders.

Simply drop the Filter Media Cup into your sock holder or filter tray, and fill with desired filter media. The beauty of the cup is you can use a wide variety of media types including filter pads, filter floss, carbon, GFO and biological filter media. To clean just replace your filter media as needed. You will no longer need to rinse and house used filter socks.

To reduce any noise produced by your Filter Media Cup, check out our reef-safe Filter Media Cup Silencer.


Specifications:

  • Dimensions: 6" Height and 4" Diameter
  • Color: Sea Foam White
  • Made in the USA
  • Material: 100% Virgin BPA free Polypropylene (typically used in Tupperware)

Note: GFO, Carbon, and other chemical filter media should be placed inside a media bag to prevent media from exiting the filter cup. Our Filter Media Cups are designed to fit sumps that use standard 4" filter socks; However, they will not fit Trigger Systems Sumps with an oval-shaped sock holder. As a precaution, we do recommend a thorough rinse with vinegar and water before placing into your filtration system.


More Information
More Information
SKU 250213
UPC 711639503465
Aquarium Type Saltwater, Freshwater
Reviews 4
Write Your Own Review
You're reviewing:High Flow Flexible Filter Media Cup - 4 inch - Sea Foam White - Media Cup
Your Rating
Product Questions

Product Questions

Hi, will these fix the Waterbox 4" sump requirement? TIA!
Question by: Davide on Jan 20, 2022, 1:06 PM
0
Hey There, thanks for the question! These cup holder will work in any sump that has a circular 4" filter sock holder and will ultimately replace your use of filter socks.
Answer by: JJ (BRS Staff) on Jan 21, 2022, 11:52 AM
0
Can you give me the outside diameter of the lip and the outside diameter of the part that slides in the hole?

Saw some just like these that people were saying were to small for 4 inch holes on Amazon. And just wanting to make sure these will fit.

Thanks.
Question by: Jared Bradley Cox on Nov 16, 2021, 5:45 PM
0
Outside diameter is 4" the cup inside diameter is 3.25"
Answer by: Tyler Schafer (BRS Staff) on Dec 17, 2021, 10:39 AM
0

SIGN UP FOR THE BULK REEF SUPPLY NEWSLETTER

Don’t be the last to know this holiday season about sales, specials, new products, and more!

Sign Up Now
BRS Fresh https://media2.cdn.bulkreefsupply.com/media/logo/stores/1/BRS-Logo-498x174.png https://fresh.bulkreefsupply.com/
BRS Fresh Bulk Reef Supply
  • Facebook Opens a new window
  • Youtube Opens a new window
  • Instagram Opens a new window
  • TikTok Opens a new window

Contact

  • 763-432-9691

  • 8am - 6pm CT M-Th
    9am - 4pm CT Friday
  • support@bulkreefsupply.com
  • 6325 Sandburg Road, Suite 200
    Golden Valley, MN 55427 US

Bulk Reef Supply
About Us
Customer Service
Careers
Wholesale Customers
Instructions
Terms & Conditions
Customer Center
Preferred Reefer Program
International Shipping
Returns & Replacements
Payment, Pricing & Promos
Shipping & Delivery
APL Star Logo
© 2025 Aperture Pet & Life. All Rights Reserved.
Privacy Policy

item(s) Added to Your Cart

Product Name

View Cart Checkout Now
You may also like
Xport-BIO Freshwater Dimpled Brick - Biological Filtration Media
Brightwell Aquatics
Xport-BIO Freshwater Dimpled Brick - Biological Filtration Media
$52.21 $52.21

Phosphate Rx
Blue Life USA
Phosphate Rx
$38.40 $38.40

ZEObak Microorganism Solution
Korallen-Zucht
ZEObak Microorganism Solution
From: $9.50

Choose Options
Shark PRO Carbon Cartridge with Sponges
Sicce
Shark PRO Carbon Cartridge with Sponges
$14.99 $14.99

3/8
Miscellaneous
3/8" Clear Vinyl Tubing - Pre-Cut
From: $11.99

Choose Options
Media Bag 2-Pack (10
Red Sea
Media Bag 2-Pack (10" x 5.5")
$8.95 $8.95

Waste-Away Time Release Gel - Large
Dr. Tim's Aquatics
Waste-Away Time Release Gel - Large
From: $21.69

Choose Options
Nano-Tech Clear Cube (8 pcs)
Maxspect
Nano-Tech Clear Cube (8 pcs)
$27.99 $27.99

2.0 Torq G2 Modular Media Reactor Body
Nyos
2.0 Torq G2 Modular Media Reactor Body
$125.00 $125.00

AF Media Sock XL
Aquaforest
AF Media Sock XL
$24.99 $24.99

Login and Registration Form

  • Login
  • Register

Registered Customers
If you have an account, sign in with your email address.
Forgot Your Password?
or

Login with Your Social Profile Login with
Continue with Google
Continue with Facebook
Continue with Apple

Personal Information
Sign-in Information
Password Strength: No Password
Back
or

Login with Your Social Profile Login with
Continue with Google
Continue with Facebook
Continue with Apple
  • Forgot Your Password?

Please enter your email address below to receive a password reset link.
Go back