Aqua Ultraviolet presents the next generation of filters and the best tool for Koi ponds. The Ultima II is specifically engineered to meet the environmental demands of ponds.The lightweight media is designed for very high flow rates. There is a patent pending on this tubular media which has low head loss and a very high biofilm surface. The “Y” shape on the inside and wings on the outside affords a protective surface under backwashing and our patent pending backwash system will keep the media from clogging. The same properties have been added to this media in three different sizes with random lengths and diameters to avoid stacking. One cubic foot of Ultima II media is equal to 750 square feet of surface area. Cleaning the filter is done by internal jets. The Ultima II is also the ideal filter for aquariums where very high flow rates are desired.

• Very Heavy Flow Rate
• No Channeling
• Minutes to Backwash
• Heavy Fish Loads
• Compact Filter Can be Buried
• For Ponds up to 2,000 Gal.
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• 16-1/2" dia. x 33" tall
• 1-1/2" FPT inlet and outlet
• Includes unions which make inlet and outlet 1-1/2" slip fitting.
  (See table below for recommended plumbing connections.)
• Minimum Flow Rate: for proper backwashing your pump should have enough pressure to be capable of pumping 1000GPH @10' of head.
• Maximum Flow Rate: 4500 GPH
• 1 Year Warranty
• Installation Instructions (PDF file opens in new window)

Use the following table to help determine the necessary fittings for this waterfall tank. Please note you may also need PVC cement and/or Teflon tape to make connections.