SPECIAL INTRODUCTORY OFFER
Purchase a Graf Herkules™ or Top Tank™ and receive a Graf Quattro Twist™ downspout filter/diverter ($79.95 value) FREE!*
PLUS: $65.00 Flat-rate shipping (Lower 48 states only)
The Graf Herkules™ tank is a heavy-duty, versatile rainwater collection tank which can be used for both above-ground and underground applications. Its sturdy construction consists of 100% recyclable glass reinforced polypropylene with UV inhibitors.
The tank can be used alone or it can be extended to thousands of gallons.
- Unique, stylish appearance
- Fits through 32" doorways
- Great for under-deck and basement installations
- May be partially or fully buried
- Easily extended to multiple tanks
- Up to 40" burial depth
- Safe for high groundwater applications
- Simple assembly with a reliable gasket
- Pedestrian traffic load only
- Approx. 130 lbs.
- Up to 7 tanks on a single pallet
Requires underground kit for underground installation (underground kit includes structural support column, 8" riser and access dome). Underground kit is available for $99.95.


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Patented, durable, high performance seal and seal-locks join the two halves |
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| Heavy-duty, versatile tank design is well suited for basements and under decks in addition to typical above ground or completely buried installations. |
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Download Herkules Installation Manual
* Special offer details:
- One free filter per tank ordered
- Standard filter color is beige. Brown and gray available on request.
- Good while supplies last
- Sorry - no substitutions or other discounts
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