Fluidall offers an extensive array of above ground UL Listed round steel tanks and obround tanks and skids in horizontal and vertical positions for oil storage and dispense.

The UL 142 Listed steel round and obround storage tanks are shop built in single and double walled capacities from 150 to 2,000 gallons for the storage and dispense requirements of lubricants, oils and chemicals. These oil tank utilize the latest welding technology and testing standards to ensure that you receive the highest quality round and obround storage tanks available for horizontal and vertical arrangements.
All Steel Round Tanks and Steel Obround Tanks are Equipped with a Universal Hose Reel Mount Plate.

Round Horizontal Tanks
Round Horizontal Oil Tanks are available in single wall and double wall tank configurations. Horizontal Round Steel Tanks have a 2" drain as there is no interstitial space to monitor. Round Horizontal double wall tanks have a 2" pipe with an elbow at the bottom that allows for insertion of a gauge for inspection of the interstitial space on a double wall tank.
Round Horizontal Single Wall Tanks Specifications
Tank Model |
Gallon Capacity |
Tank Dimensions |
Tank Openings |
SSW150PDH |
147 Gallons |
30"Dia x 48"L |
(4) 2" Top NPT, (1) 4" NPT Emergency Vent, (1) 2" Bottom Drain |
SSW280PDH |
264 Gallons |
36"Dia x 60"L |
(4) 2" Top NPT, (1) 4" NPT Emergency Vent, (1) 2" Bottom Drain |
SSW500PDH |
509 Gallons |
48"Dia x 65"L |
(4) 2" Top NPT, (1) 4" NPT Emergency Vent, (1) 2" Bottom Drain |
SSW1000PDH |
1,018 Gallons |
48"Dia x 130"L |
(5) 2" Top NPT, (1) 6" NPT Emergency Vent, (1) 2" Bottom Drain |
SSW2000PDH |
2,005 Gallons |
64"Dia x 144"L |
(5) 2" Top NPT, (1) 6" NPT Emergency Vent, (1) 2" Bottom Drain |
Round Horizontal Double Wall Tanks Specifications
Tank Model |
Gallon Capacity |
Tank Dimensions |
Tank Openings |
SDW150PDHDW |
147 Gallons |
30"Dia x 48"L |
(5) 2" Top NPT, (2) 4" NPT Emergency Vent, (1) 2" Monitoring Pipe |
SDW280PDHDW |
264 Gallons |
36"Dia x 60"L |
(5) 2" Top NPT, (2) 4" NPT Emergency Vent, (1) 2" Monitoring Pipe |
SDW500PDHDW |
509 Gallons |
48"Dia x 65"L |
(5) 2" Top NPT, (2) 4" NPT Emergency Vent, (1) 2" Monitoring Pipe |
SDW1000PDHDW |
1,018 Gallons |
48"Dia x 130"L |
(5) 2" Top NPT, (2) 6" NPT Emergency Vent, (1) 2" Monitoring Pipe |
SDW2000PDHDW |
2,005 Gallons |
64"Dia x 144"L |
(5) 2" Top NPT, (2) 6" NPT Emergency Vent, (1) 2" Monitoring Pipe |

Round Horizontal Skids
Round Horizontal Skids are available in single wall and double wall metal tank configurations. Single wall skids have a 2" drain as there is no interstitial space to monitor. Double wall skids have a 2" pipe with an elbow at the bottom that allows for insertion of a gauge for inspection of the interstitial space on a double wall steel skid tank.
Round Horizontal Single Wall Skid Specifications
Tank Model |
Gallon Capacity |
Tank Dimensions |
Tank Openings |
SSW280PDSK |
264 Gallons |
36"Dia x 60"L |
(4) 2" Top NPT, (1) 4" NPT Emergency Vent, (1) 2" Bottom Drain |
SSW500PDSK |
509 Gallons |
48"Dia x 65"L |
(4) 2" Top NPT, (1) 4" NPT Emergency Vent, (1) 2" Bottom Drain |
SSW1000PDSK |
1,018 Gallons |
48"Dia x 130"L |
(5) 2" Top NPT, (1) 6" NPT Emergency Vent, (1) 2" Bottom Drain |
SSW2000PDSK |
2,005 Gallons |
64"Dia x 144"L |
(5) 2" Top NPT, (1) 6" NPT Emergency Vent, (1) 2" Bottom Drain |
Round Horizontal Double Wall Skid Specifications
Tank Model |
Gallon Capacity |
Tank Dimensions |
Tank Openings |
SDW280PDSKDW |
264 Gallons |
36"Dia x 60"L |
(5) 2" Top NPT, (2) 4" NPT Emergency Vent, (1) 2" Monitoring Pipe |
SDW500PDSKDW
|
509 Gallons |
48"Dia x 65"L |
(5) 2" Top NPT, (2) 4" NPT Emergency Vent, (1) 2" Monitoring Pipe |
SDW1000PDSKDW |
1,018 Gallons |
48"Dia x 130"L |
(5) 2" Top NPT, (2) 6" NPT Emergency Vent, (1) 2" Monitoring Pipe |
SDW2000PDSKDW |
2,005 Gallons |
64"Dia x 144"L |
(5) 2" Top NPT, (2) 6" NPT Emergency Vent, (1) 2" Monitoring Pipe |

Obround Horizontal Tanks
Obround Horizontal Tanks are available in single wall tank configurations only. Horizontal Obround single wall tanks have a 2" drain as there is no interstitial space to monitor.
Double wall obround tanks have a 2" monitor opening into the interstitial space between the inner and outer tank to check for leaks.
Obround Horizontal Single Wall Tanks Specifications
Tank Model |
Gallon Capacity |
Tank Dimensions |
Tank Openings |
SSW275PDOB |
275 Gallons |
27"W x 60"L x 44"H |
(5) 2" Top NPT, (1) 4" NPT Emergency Vent, (1) 2" Bottom Drain |
SSW330PDOB |
330 Gallons |
27"W x 72"L x 44"H |
(5) 2" Top NPT, (1) 4" NPT Emergency Vent, (1) 2" Bottom Drain |
Obround Horizontal Double Wall Tanks Specifications
Tank Model |
Gallon Capacity |
Tank Dimensions |
Tank Openings |
SDW275PDOBDW |
275 Gallons |
27"W x 60"L x 44"H |
(5) 2" Top NPT, (2) 4" NPT Emergency Vent, (1) 2" Interstitial Opening |
SDW330PDOBDW |
330 Gallons |
27"W x 72"L x 44"H |
(5) 2" Top NPT, (2) 4" NPT Emergency Vent, (1) 2" Interstitial Opening |

Obround Vertical Tanks
Obround Vertical Tanks are available in single wall and double wall tank configurations. Vertical single wall Obrounds have a 2" drain as there is no interstitial space to monitor. Vertical double wall obround tanks have a 2" monitor opening into the interstitial space between the inner and outer tank to check for leaks.
Obround Vertical Single Wall Tanks Specifications
Tank Model |
Gallon Capacity |
Tank Dimensions |
Tank Openings |
SSW275PDV |
275 Gallons |
44"W x 27"L x 60"H |
(5) 2" Top NPT, (1) 4" NPT Emergency Vent, (1) 2" Bottom Drain |
SSW330PDV |
330 Gallons |
44"W x 27"L x 72"H |
(5) 2" Top NPT, (1) 4" NPT Emergency Vent, (1) 2" Bottom Drain |
Obround Vertical Double Wall Tanks Specifications
Tank Model |
Gallon Capacity |
Tank Dimensions |
Tank Openings |
SDW275PDVDW |
275 Gallons |
44"W x 27"L x 60"H |
(5) 2" Top NPT, (2) 4" NPT Emergency Vent, (1) 2" Interstitial Opening |
SDW330PDVDW |
330 Gallons |
44"W x 27"L x 72"H |
(5) 2" Top NPT, (2) 4" NPT Emergency Vent, (1) 2" Interstitial Opening |

Round Vertical Tanks
Round Vertical Tanks are available in single wall and double wall tank configurations. Round Vertical single wall tanks have a 2" drain as there is no interstitial space to monitor. Round Vertical double wall obround tanks have a 2" monitor opening into the interstitial space between the inner and outer tank to check for leaks.
Round Vertical Single Wall Tanks Specifications
Tank Model |
Gallon Capacity |
Tank Dimensions |
Tank Openings |
SSW500PDV |
509 Gallons |
48"Dia x 65"H |
(4) 2" Top NPT, (1) 4" NPT Emergency Vent, (1) 2" Bottom Drain |
SSW1000PDV |
1,002 Gallons |
64"Dia x 72"H |
(5) 2" Top NPT, (1) 6" NPT Emergency Vent, (1) 2" Bottom Drain |
Round Vertical Double Wall Tanks Specifications
Tank Model |
Gallon Capacity |
Tank Dimensions |
Tank Openings |
SDW500PDVDW |
509 Gallons |
48"Dia x 65"H |
(4) 2" Top NPT, (2) 4" NPT Emergency Vent, (1) 2" Interstitial Opening |
SDW1000PDVDW |
1,002 Gallons |
64"Dia x 72"H |
(5) 2" Top NPT, (2) 6" NPT Emergency Vent, (1) 2" Interstitial Opening |