Aquadyne 8000 Bead Pond Filter with DynaMax Blower up to 8000 Gallons
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Struggling to keep a big pond clean without constant maintenance and endless water waste? This bead filtration system handles ponds up to 8,000 gallons and supports as much as 165 pounds of fish, so your water stays clear even under heavy waste loading. Backwash the whole unit with as little as 50 gallons of water, and let the air-assisted blower do the hard work for you.

Built for larger ponds, this model was previously sold as the Classic Aquadyne 2.2B and remains the most popular filter the brand produces. It filters 8,000 gallons of water while housing up to 165 pounds of fish or other aquatic inhabitants. The tan tank rests on a black conical base and carries the Aquadyne product spec label on the front, with a multiport valve and pressure gauge at the top for easy operation.
At the heart of the unit sits 2.2 cubic feet of bead media weighing 80 pounds. That larger media bed does more than trap debris:
The included DynaMax air-assisted backwash is what makes this model so efficient across every level of waste loading. Even when the media bed is packed with debris, the DynaMax breaks it apart with ease. The black DynaMax blower is mounted at the top of the unit for direct air assistance.
Getting connected is straightforward thanks to the pre-assembled fittings included with the unit. You get 3 pre-assembled schedule 80 unions plus pre-mounted male adapters ready to go. The white schedule 80 union plumbing runs down the right side of the tank with blue quarter-turn valves for convenient control.
Sized to fit poolside or in a filtration bay, the tan tank measures 24" in diameter by 46" in height and is rated for a maximum pressure of 50 psi. That headroom means the filter takes on demanding fish loads without strain, giving you clear water season after season.
This is the choice for pond owners who want strong filtration without babysitting the equipment. The combination of a generous media bed, the DynaMax blower, and minimal backwash water use means:
| SKU | 94008 |
|---|---|
| Brand | Aquadyne |
| Model | AD8000 (previously Classic 2.2B) |
| Pond Size | Up to 8,000 Gallons |
| Fish Load | 165 Lbs. |
| Pump Size | 1,000 to 6,000 GPH |
| Plumbing Ports | 1-1/2" |
| Plumbing Accessories | 3 ea. Self-Sealing 1-1/2" Unions Included, Pre-Mounted Male Adapters |
| Head Pressure | 0 to 2 Psi at 4,000 GPH on a Clean Cycled Filter |
| Maximum Pressure | 50 psi |
| Media Volume | 2.2 Cubic Feet |
| Media Weight | 80 Lbs. |
| Avg. Backwash | 50 Gal. |
| Dimensions (D x H) | 24" x 46" |