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

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$57.46
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About This

  • Wide Compatibility: The 12 pack filter cartridges are compatible with all popular models of Tetra Whisper (PF20/30/40/60, IQ20/30/45/60, 20i/40i, etc.) and ReptoFilter 50 gallon aquariums. A single box lasts for 3-6 months, making it the most cost effective choice for multi-tank families/frequent water changes.
  • 4 in 1 filter cartridge & all-round water quality management: Physical interception: double-sided encrypted filter, highly efficient filtration of a variety of impurities. ②Activated Carbon Reinforcement Layer: 80% more activated carbon content, continuous adsorption for up to 28 days. ③Zeolite balance layer: 20% zeolite long-lasting balance PH value, to achieve a stable water state.
  • 3 Steps for Easy Replacement:① Pre-encapsulated filter material prevents carbon leakage, say goodbye to traditional filter cartridge carbon pollution. ② Reinforced ABS frame resists deformation, fits seamlessly into Whisper filter compartment. ③ No cutting, no assembly, 30 seconds to complete the process of replacing the old with the new.
  • Cost-effective Advantage: 10-piece filter cartridge, a single cartridge can cover up to 50 gallons of water (125GPH flow), composite filter material extends service life and reduces the cost of frequent replacement.
  • ①Sealed Packaging: filter material stays fresh for 18 months. ②Water quality problems 48 hours to diagnose the programme

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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