
Store Clean Drinkable Water Safely and Securely
The Benefits of Fiberglass
- Fiberglass tanks have a long history of use in applications where watertight design integrity is critical, including extensive use in the storage of motor fuels. Leak-free performance is essential when it comes to fire protection water storage.
- Installation steps and costs are minimized by the lightweight nature of fiberglass since expensive heavy-lifting equipment generally is not necessary. This also is an important consideration when tank installation sites are difficult to access.
- Large capacity tanks, up to 60,000 gal. Sizes generally required in fire protection systems, are factory-manufactured products that provide superior quality control processes vs. fabricating a tank on site where it is subject to varying weather conditions and manufacturing controls.
- A fiberglass tank can be designed for dual-purpose use, with a common example being fire protection standby as well as potable water. A fiberglass tank can be ordered with a National Sanitation Foundation listing for potable applications.
Marking and Identification
Make sure your tanks are accurately marked.
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Potable Water Storage
Nationwide Tank and Pipe FRP Water Tanks are built to AWWA Standards using NSF approved resins with UV inhibitors to ensure durability and a life long containment solution.

Standard Tank Diameter
- 8’ diameter
- 10’ diameter
- 12’ diameter
- 14’ diameter
- 15’ 6”diameter
Tank Accessories
- Baffles
- Fiberglass manways
- Fiberglass collars and extensions
- Flanged nozzles
- FRP risers for access openings
- Watertight riser covers
- Threaded full couplings
- Hold down straps
- Concrete deadmen and anchors
- Tank ladders (Straight & Caged)
- Top Circular Railing
- Walkway Stairs
- Hand Rails
- Fill/Draw pipes
- Pump platforms
- Dry hydrants and strainers
- Vent/level indicators
- Fill assemblies
In addition to National Standards, NTP adheres to the following Standards:
- ASTM D3299: Standard Specification for Filament-Wound Glass-FiberReinforced Thermostat Resin Corrosion-Resistant Tanks
- ASTM D4097: Standard Specification for Contact-Molded Glass-FiberReinforced Thermoset Resin
- ASTM C-581: Standard Practice for Determining Chemical Resistance of Thermosetting Resins used in Glass Fiber Reinforced Structures Intended for Liquid Service”
- ASTM D-883: “Definition of Terms Relating to Plastics”
- ASTM D-2563: “Recommended Practice for Classifying Visual Defects in Glass Reinforced Plastic Laminate Parts “
- ASTM D-2583: “Test for Indentation Hardness of Rigid Plastics by Means of Barcol Impressor”
- ASTM C582 Table 5: Classifying Visual Defects in Glass Reinforced Laminates and parts there from.



Above Ground Tank Sizes and Capacity (Gallons)
WALL HEIGHT | 8' DIAMETER | 10' DIAMETER | 12' DIAMETER | 14' DIAMETER | 15.6' DIAMETER |
---|---|---|---|---|---|
5' | 1878 | 2935 | 4227 | 5744 | 7046 |
6' | 2254 | 3523 | 5073 | 6893 | 8455 |
7' | 2630 | 4110 | 5918 | 8042 | 9864 |
8' | 3006 | 4697 | 6764 | 9190 | 11273 |
9' | 3382 | 5284 | 7609 | 10339 | 12683 |
10' | 3757 | 5871 | 8455 | 11488 | 14092 |
11' | 4133 | 6458 | 9300 | 12637 | 15501 |
12' | 4509 | 7046 | 10146 | 11837 | 16910 |
13' | 4885 | 7633 | 10992 | 14934 | 18320 |
14' | 5261 | 8220 | 11837 | 16083 | 19729 |
15' | 5636 | 8807 | 12683 | 17232 | 21138 |
16' | 6012 | 9394 | 13528 | 18381 | 22547 |
17' | 6388 | 9982 | 14374 | 19529 | 23956 |
18' | 6764 | 10569 | 15219 | 20678 | 25366 |
19' | 7140 | 11156 | 16065 | 21827 | 31003 |
20' | 7515 | 11743 | 16910 | 22976 | 28184 |
21' | 7891 | 12330 | 17756 | 24125 | 29593 |
22' | 8267 | 12917 | 18601 | 25273 | 31003 |
23' | 8643 | 13505 | 19447 | 26422 | 32412 |
24' | 9019 | 14092 | 20292 | 27571 | 33821 |
25' | 9394 | 14679 | 21138 | 28720 | 35230 |
26' | 9770 | 15266 | 21984 | 29869 | 36640 |
27' | 10146 | 15853 | 22829 | 31017 | 38049 |
28' | 10522 | 16441 | 23675 | 32166 | 39458 |
29' | 10898 | 17028 | 24520 | 33315 | 40867 |
30' | 11273 | 17615 | 25366 | 34464 | 42276 |