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Atlantic Water Gardens BF1900 Big Bahama FilterFall 19-inch spillway, molded polyethylene body, removable top grate and liner flange on white background

Atlantic Water Gardens BF1900 Big Bahama FilterFall 19" Spillway

Brand: Atlantic Water Gardens
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$532.82
$399.62
SKU BF1900

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The BF1900 Big Bahama FilterFall from Atlantic Water Gardens is a heavy-duty biological waterfall filter designed to deliver clear, healthy pond water while providing a natural 19" spillway. Built with a reinforced, molded polyethylene enclosure and removable top grate, the FilterFall accepts multiple filter mats and biomedia so filtration capacity can grow with your pond.

  • 19" spillway: wide, even sheet flow for a natural waterfall appearance.
  • Dimensions: 28" W x 25" D x 21.5" H — compact, easy to camouflage behind rockwork.
  • Pump flow range: 2,500–4,000 GPH recommended for optimal performance and aeration.
  • Bulkhead: 2" FIPT bulkhead standard for robust plumbing connections.
  • Capacity & media: oversized chamber accepts Matala/multi-layer filter mats, media bags, and bio-media for scalable biological filtration.
  • Included: installation kit, male thread adapter and one-piece liner flange for secure liner attachment.
  • Compatibility & sizing: matches PS4600 skimmer; suitable for ponds up to ~2,000 gallons (typical guidance).
  • Durability & warranty: reinforced body resists warping; enclosure carries Atlantic's lifetime enclosure warranty.

Designed for easy installation and low seasonal maintenance, the BF1900 provides both mechanical and biological filtration—removing suspended solids and supporting beneficial bacteria that convert ammonia and nitrite to less harmful nitrates. For best results, pair with a properly sized pump within the recommended GPH range, stage filter media to maximize surface area, and inspect pads annually. Recommended accessories include bio-balls or Atlantic media bags and replacement Matala filter mats sized for the BF1900.

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Frequently Asked Questions

What pump size is recommended for the BF1900?
Use a pump rated about 2,500–4,000 GPH. Match pump flow to desired waterfall look and total dynamic head.
How much filtration media does the BF1900 accept?
BF1900’s oversized chamber accepts multiple Matala mats, media bags, and bio-media to scale filtration as fish loads increase.
Does the BF1900 include installation fittings and liner attachment?
Yes. Each unit includes an installation kit, male thread adapter and one-piece liner flange for a watertight liner connection.