Round, Flat-Bottom, Nestable Tanks are one piece with no seams or sharp edges. Lightweight polyethylene is also environmentally friendly because it can be recycled. Other features include:

| Part # | A | B | C | Gallons | Bottom | Pricing |
| PT-4822 | 48″ | 40″ | 22″ | 125 | Flat | $265.00 |
| PT-4825 | 48″ | 39″ | 25″ | 150 | Rd. Sump | $265.00 |
| PT-5228 | 52″ | 44″ | 28″ | 180 | Sq. Sump | $294.00 |
| PT-5430 | 54″ | 41″ | 30″ | 200 | Flat | Call for Pricing |
| PT-6530 | 65″ | 53″ | 30″ | 300 | Flat | Call for Pricing |
| PT-9016 | 90″ | 80″ | 16″ | 300 | Semi-Flat | $470.00 |
| PT-8030 | 80″ | 67″ | 30″ | 500 | Flat | $587.00 |
| PT-9038 | 90″ | 76″ | 38″ | 800 | Flat | $763.00 |
| PT-9650 | 96″ | 82″ | 50″ | 1200 | Flat | $882.00 |