16-Pack Large Replacement Filter Cartridges Compatible with Tetra Whisper Bio-Bag Filters Large Aaquarium Filter Cartridges for Whisper 20i/40i /IQ20/30/45/60 PF20/30/40/60 Power Filters

Regular Price
$83.30
Sale Price
$83.30
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Big Frenchies Size Charts
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Baby Onesie Size Chart

onesie size chart


Women's T-shirt Size Chart

women's t-shirt size chart


Men's T-shirt Size Chart 

men's t-shirt size chart


Infant Long Sleeve Onesie Size Chart

Size Chart - Infant Organic Long Sleeve Onesie

Infant Rib T-shirt Size Chart

Size Chart - Infant Organic Rib Tee

Youth Short Sleeve Crew T-shirt Size Chart

Size Chart - Youth Organic Short Sleeve Crew Tee

Unisex Sweatshirt Size Chart

Size Chart - Unisex Sweatshirt

Infant Rib Pants Size Chart

Size Chart - Infant Rib Pants

About This

  • 【Large Replacement Filter Cartridge,Work Perfectly With Whisper Bio-bag Filters】: Our Large Replacement Filter Cartridges are compatible for Whisper IQ20, IQ30,IQ45 and IQ60 Power Filters and 20i & 40i Internals, or PF20, PF30, PF40, PF60 Power Filters. Ideal for 10-30/20-40/30-60 gallon fish tanks or aquariums.
  • 【5 in 1 Filtration System,Clear Water Made Simple】: ① Dual-sided mesh catches debris and fish waste. ②40% more activated carbon for longer lasting, more complete filtration ③ NEW aquarium filter media Zeo-lite, work to keep PH balance of the water.④ New filter media - Ceramics,works to absorb heavy metals from water and improve the taste of water.
  • 【Increase In Quantity Not Price】:40% more activated carbon + 2 new filtration media zeolite and ceramic - for faster, more complete filtration. All of this is designed for our wet friends who live in water. Let them live in a cleaner, fresher space.
  • 【Easy To Use And Ready To Go】:Our large fish tank filter cartridges are already assembly.Once rinsed, it can be placed in whisper filter for quick filtration. We recommend that you change the large replacement filter cartridge within 2-4 weeks for better results.
  • 【XBBWMRS Friendly Customer Service】: As an honest seller, we will take responsibility for your purchase. If you have any questions about our large aquarium filter cartridges, please contact us. We will help you solve the problem as soon as possible.

How long will it take to ship my order?

Your order will be shipped within 3-8 business days.

How much does it cost?

We offer free trackable shipping on select items.

Shipping rates for partner brand items and international orders may vary and will be calculated at checkout.

Where is my order shipped from?

Big Frenchies apparel is shipped in plastic-free packaging directly from our Virginia facility. Items from our partner brands may have different packaging and can be shipped from any of their fulfillment locations worldwide.

How long does shipping take?

USA: 3-8 business days
CA, AUS, UK, and Europe: 5-21 business days
Rest of world: 5-25 business days

As a small family-owned business, we thrive on your feedback, so it's vitally important for us to make sure you're happy with your purchase.

Our return policy is simple: You have 30 days from delivery to request a return or exchange for most products shipped within the United States.
Customers are responsible for return shipping costs unless the return is due to a defective product. Learn more about our full return policy.

Please note:

  • Returns are only available for US orders. International orders are final sale.
  • For health and safety reasons, personal care items (like baby creams, shampoos, balms, sunscreens, and lotions) and food products cannot be returned once opened.
  • Custom and handmade items are final sale and cannot be returned or exchanged, as they are crafted specifically to order.
  • A restocking fee may apply to certain eligible returns. If applicable, this will be communicated upon return authorization.

You can reach out to our customer support team by submitting your request via the "Contact Us" form or by emailing us at support@bigfrenchies.com. A member of our support staff will respond to you as soon as possible.

We'd love to hear from you!
The best way to reach us is via email: support@bigfrenchies.com.

Have questions about sustainability, shipping, return, exchange or something similar?

Check our FAQ page.

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