LARR/IAPMO CertifiedRainHarvest Systems offers high quality GRAF underground rainwater harvesting tanks that have been tested and are listed by IAPMO (International Association of Plumbing & Mechanical Officials) R&T to Standard Z1002 as determined by Los Angeles Research Report (LARR) 5755. |
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Carat S Underground TanksThe lineup consists of four modular tank units ranging from 700 gallons to 1700 gallons which are expandable up to thousands of gallons. The precision, modular, and ultra-high strength design of the Carat S makes it the choice of professionals worldwide. The GRAF Carat tank is guaranteed not to collapse when empty when installed per the manufacturer’s specifications. |
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Tank (US Gallons) |
700 | 1000 |
1250 |
1700 |
1700 (Expansion Tank) |
Part No. |
372001 | 372002 | 372026 | 372004 | 372014 |
Weight |
265 lb. | 331 lb. | 408 lb. | 485 lb. | 485 lb. |
L |
82" | 90" | 90" | 94" | 94" |
W |
62" | 69" | 78" | 86" | 86" |
H |
55" | 62.5" | 71.5" | 82.5" | 82.5" |
Htot* |
79" | 86.5" | 95.5" | 106.5" | NA |
Htot** |
66" | 73.5" | 82.5" | 93.5" | NA |
*Htot = total height **with Mini Tank Dome. Deeper burial depths can be achieved using optional extension rings
Carat S underground tanks are approved under Section 94.101.5.6, 94.301.0, 94.309.0, and 1602.9.5 of the Los Angeles Plumbing Code, 2020 Edition and are subject to the following conditions: