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Free standard shipping on orders
We are pleased to offer Free Worldwide Shipping on all orders, delivering to all countries and regions supported by our logistics network.
There are no restrictions on order quantity, parcel size, or shipment weight — every order ships at no cost to you. In addition, all customs duties, import taxes, and government-imposed fees associated with your shipment will be fully covered by us, ensuring you will not incur any extra charges upon delivery.
Please note that delivery times may vary due to local customs procedures and carrier conditions, but your shipping and customs costs will remain completely free under this policy.
We provide a secure and reliable Free Returns service for all customers. Items that remain unused and unopened may be returned within 60 days for a full refund.
All return shipping expenses, including customs-related fees, are fully covered by us.
Refund processing will be completed within 4 weeks from the date the return shipment is sent, regardless of whether the package has arrived at our facility. In general, refunds are finalized significantly earlier, ensuring a smooth and dependable experience.
For 50 years, fishkeeping enthusiasts have looked to the Tetra name for products and solutions that add ease and beauty to their home. Whether you're an experienced hobbyist or just starting out, Tetra has everything you need–-from a large variety of quality fish food and innovative equipment to test kits and decor. Whisper Bio-Bag Cartridges complete the Whisper Power Filter package for a clean, easy-to-maintain aquarium. The Whisper Bio-Bag multi-packs come unassembled and offer economical pricing on larger quantities. Simply detach clip from Aerobic Frame and slide the filter bag over the frame. Add one packet of Ultra-activated carbon. Press the Aerobic Frame flaps down over the top of the filter bag and press the clip down over the flaps. Rinse under cool tap water to remove carbon dust. Insert the Bio-Bag into filter slots. For best results change the Bio-Bag monthly. Fits: Small-3i Internal Medium- PF10 Power Filter, 10i Internal and Reptofilter 90 GPH Large- 20, 30,40 and 60 Power Filters and 20i & 40i Internals XL-Whisper 4 and 5, TetraTec 300 and 500
1. Rinse Bio-Bag under cool tap water to remove carbon dust. 2. Open lid and insert into filter. 3. Replace clogged when there is reduced flow out of the
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