Cone-Bottom, Cylindrical Tanks are made of a heavy-duty, chemical-resistant, polyethylene plastic which has a very smooth and slippery surface. These tanks have the same features as the flat-bottom tanks with an added bonus – the bottom is cone-shaped for total drainage. These tanks must be supported with some type of stand.

See table for tank dimensions, Part #300 – 316.
(Part #312 & 314 have a 15 cone bottom. Part #300 – 308 & 316 have a 45 cone bottom.)
| Cone-Bottom, Cylindrical Tanks | |||||||
| Part # | Gallons | Depth | Diameter | Height | Thickness | Bottom Angle | Price |
| PT-300 | 15 | 16″ | 15″ | 26″ | 3/16″ | 45 | $52.50 |
| PT-301 | 15 | 16″ | 15″ | 21″ | 3/16″ | 15 | Call for Pricing |
| PT-302 | 30 | 27″ | 18″ | 38″ | 3/16″ | 45 | $98.40 |
| PT-304 | 55 | 31″ | 22″ | 44″ | 3/16″ | 45 | $164.10 |
| PT-306A | 80 | 38″ | 24″ | 52″ | 1/4″ | 45 | Call for Pricing |
| PT-306B | 80 | 26″ | 29″ | 31″ | 1/4″ | 15 | Call for Pricing |
| PT-307 | 95 | 20″ | 36″ | 33″ | 1/4″ | 45 | Call for Pricing |
| PT-308A | 120 | 42″ | 28″ | 58″ | 1/4″ | 45 | Call for Pricing |
| PT-308B | 120 | 35″ | 32″ | 42″ | 1/4″ | 45 | Call for Pricing |
| PT-310 | 175 | 30″ | 41″ | 40″ | 1/4″ | 45 | Call for Pricing |
| PT-312 | 250 | 40″ | 42″ | 47″ | 5/16″ | 15 | Call for Pricing |
| PT-312A | 250 | 42″ | 41″ | 50″ | 5/16″ | 15 | Call for Pricing |
| PT-313 | 275 | 38″ | 49″ | 60″ | 5/16″ | 15 | $721.90 |
| PT-314 | 500 | 57″ | 52″ | 62″ | 3/8″ | 15 | $984.40 |
| PT-316 | 500 | 48″ | 48″ | 72″ | 3/8″ | 45 | Call for Pricing |