Spiral Filter Mat Green

Upgrade your pond or aquarium filtration system with the Mountain Tree Spiral Filter Mat, an advanced multi-functional filter media engineered for both mechanical and biological filtration. Featuring a patented spiral 3D structure, this premium filter mat provides exceptional water permeability while maximizing surface area for beneficial bacteria colonization.

The innovative spiral and coarse filament design promotes superior bio-filtration performance by improving oxygen circulation and evenly distributing organic material throughout the media. This helps beneficial nitrifying bacteria remain active while reducing the risk of clogging and dead zones within the filtration system.

Manufactured using a durable hot-melting process, the Mountain Tree Spiral Filter Mat maintains its structure over time and resists UV exposure, sunlight, and wear from long-term use. Its moderate density makes maintenance simple while allowing excellent water flow for more efficient filtration performance.

Perfect for koi ponds, bakki shower systems, freshwater aquariums, marine aquariums, sump systems, trickle filters, and custom filtration chambers, the Spiral Filter Mat can easily be cut and customized to fit virtually any filtration setup. The eco-friendly and RoHS-compliant material ensures safe use for fish, plants, and beneficial bacteria alike.

Key Features:

• Patented spiral 3D filtration structure
• Combines mechanical and biological filtration
• High water permeability with reduced clogging
• Encourages beneficial bacteria growth
• Improves oxygen circulation throughout the filter
• Durable hot-melt construction for long-lasting performance
• UV and sunlight resistant
• Easy to cut, clean, install, and customize
• Suitable for koi ponds, bakki showers, aquariums, and sump systems
• Eco-friendly and RoHS compliant materials
• Helps improve water clarity and filtration efficiency

• Free Shipping is valid for orders with a subtotal exceeding $199 and all orders will be shipped via UPS. Items purchased for delivery after 3pm will ship the following day. Items purchased for delivery after 3pm on Friday will ship Monday.
• Koi Fish and Live Plants only ship Monday- Wednesday. For orders placed after 3pm on Wednesday, the order will be shipped the following Monday.
• For Motor Freight (LTL) Shipments, oversized or heavy items unsuitable for traditional parcel delivery are not eligible for free shipping. These items will be dispatched through a motor freight carrier, as indicated on the product page. Once the carrier receives your order, they will reach out to arrange a delivery time. An individual aged 18 or older must be present to sign for the delivery.
• You may return or exchange an unused or unopened item for a refund (excluding shipping and handling charges) within 30 days of purchase. Following 30 days, the item may be returned in exchange for a store credit. Return shipping cost are covered by the customer and some items returned will result in a restocking fee. Please click here to review our returns policy.
• To receive a refund for Live Plants, you must email ecommerce@fitzfishponds.com with the image of the item in the original packaging for review.
• To ensure Live Plants have the best chance to arrive without issue, it is recommended to select next day air or two day shipping options.
• Used chemicals and fish food are not returnable. In addition, all sales on Japanese Koi are final and non-refundable. Should you have any questions or concerns when your fish arrive, please call 908-420-9908.