900 Gallon Tanks
900 Gallon Tanks
Nine hundred gallons is a low-profile capacity. Enduraplas molds it 72 inches across and only 60 inches tall, in a 1.2 wall and a 1.5 wall, and Norwesco molds a two-compartment septic tank for Florida at the same volume. Spin the Enduraplas vertical below and see why it fits where a taller tank cannot.
- 3
- tanks at 900 gallons
- 72 in
- across
- 60 in
- tall
- 1.2 / 1.5
- wall rating, specific gravity
Listed from $1,600 before freight. Call 866-418-1777 to talk through the choice.
60inches tall. Only 60 inches tall.
The Enduraplas vertical stands 60 inches, below a 72 inch person's shoulder, under any 96 inch ceiling and under most lean-to roofs. That is the reason this mold exists: 900 gallons where height is the limit.
7,506pounds of water when full. Water alone weighs 7,506 pounds.
Multiply 900 gallons by 8.34 pounds per gallon. The 1.5 specific gravity wall carries contents up to 11,259 pounds; the 1.2 wall up to 9,007 pounds. Size the pad for what you will actually store.
The three tanks
Start with the wall. Resin sets what the tank can hold and how hot; the specific gravity rating sets how heavy a liquid the wall is built for. Pick a cell to narrow the list.
Vertical tanks
2 at 900 gallonsEnduraplas low-profile verticals: 72 inches across, 60 inches tall.
- Wall rating
- SG 1.2
- Max temp
- -
- Ships
- 540 lb
$1,639list, before freightVideoPolyethylene. Listed: FDA-compliant resin- Wall rating
- SG 1.5
- Max temp
- -
- Ships
- 540 lb
$2,277list, before freightVideoPolyethylene. No certification listed by the maker
Every size of vertical tanks, or call 866-418-1777 for the one you need.
Septic and holding tanks
1 at 900 gallonsNorwesco's Florida-only two-compartment low-profile septic tank; below grade.
Norwesco Florida Only 900 Gallon Two Compartment Low Profile Septic Tank - IAPMO CertifiedNorwesco, Green, 20" Gasketed Manway- Wall rating
- -
- Max temp
- 130 F
- Ships
- 294 lb
$1,600list, before freight
Every size of septic and holding tanks, or call 866-418-1777 for the one you need.
The three tanks, and how they differ
Enduraplas builds the low-profile vertical in two walls on one mold: a black 1.2 specific gravity tank for water, listed at 1,638 dollars before freight, and a natural 1.5 specific gravity tank listed at 1,841 dollars, both rated to 130 degrees F. The natural one reads its level by eye; the black one keeps algae down in the sun.
Norwesco's 900 gallon low-profile two-compartment septic tank is a Florida-only product, molded for Florida's code and sold only there, listed at 1,599 dollars. It is a below-grade tank with a different job that happens to share the capacity.
If you are storing water above ground, the Enduraplas pair is the choice, and the 1.5 wall is the one to buy when the liquid is denser than water or the tank will sit full in the sun for years.
Side by side, from the manufacturer records
| Tank | Type | Resin | Wall rating | Max temp | Manway | Certifications listed | Warranty | Freight class | Ship weight | Ship size | Listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Plastic Vertical Water Storage Tank in Black | Vertical | Polyethylene | SG 1.2 | FDA-compliant resin | 540 lb | 72" L x 72" W x 60" H | $1,639 | ||||
| Plastic Vertical Liquid Storage Tank in White | Vertical | Polyethylene | SG 1.5 | none listed | 540 lb | 72" L x 72" W x 60" H | $2,277 | ||||
| Florida Only Two Compartment Low Profile Septic Tank - IAPMO Certified | Septic and holding | Polyethylene | 130 F | 20" Gasketed Manway | IAPMO Approved | 5 Year Warranty | LTL, NMFC 156600-02 | 294 lb | 117" L x 60" W x 51" H | $1,600 |
Scroll the table sideways; the tank name stays put.
What 900 gallons is on the ground
Only 60 inches tall. The Enduraplas vertical stands 60 inches, below a 72 inch person's shoulder, under any 96 inch ceiling and under most lean-to roofs. That is the reason this mold exists: 900 gallons where height is the limit.
A 6 foot circle of pad. The base is 72 inches across, about 28 square feet. The wide base spreads the load; a level, compacted gravel bed or a slab with the whole bottom supported carries it.
Water alone weighs 7,506 pounds. Multiply 900 gallons by 8.34 pounds per gallon. The 1.5 specific gravity wall carries contents up to 11,259 pounds; the 1.2 wall up to 9,007 pounds. Size the pad for what you will actually store.
Choosing by what you will store
Water under a roof
The 60 inch height is the feature. Barns, lean-tos, equipment sheds and basements that cannot take a taller tank take this one, and the wide base needs no special foundation.
Browse water under a roof tanksRainwater harvesting
A 900 gallon tank catches an inch of rain from a 1,400 square foot roof. A low tank sits under a gutter line without a tower of pipe; add a first-flush diverter and a screened inlet.
Browse rainwater harvesting tanksHeavier liquids
The 1.5 wall carries liquids up to one and a half times the density of water. Check the liquid against the chemical tank recommender before committing an Enduraplas resin to a chemical.
Browse heavier liquids tanksSeptic in Florida
The Norwesco two-compartment tank is built for Florida installs only. Outside Florida, the septic tanks hub lists the right tank for your state.
Browse septic in florida tanksSee it move
Dimensions, fittings and shipping notes for the Norwesco Florida Only 900 Gallon Two Compartment Low Profile Septic Tank - IAPMO Certified. Every tank on this page has its own.
Getting it to your site, honestly
All three ship LTL freight on a flatbed or a pallet; the 72 inch diameter is wide but the 60 inch height keeps it off the oversize list on most lanes. Listed prices are before freight.
Enduraplas and Norwesco plants are listed on each product page. The freight cost estimator picks the right origin and quotes your ZIP with a real LTL number.
The honest limitation: three tanks is a short list. If none of them fits, the 750 and 1,300 gallon pages hold the nearest sizes in more shapes, and we will say so on the phone.
What the carrier sees
- Freight class
- LTL
- NMFC
- -
- Ship size
- 72" L x 72" W x 60" H
- Ship weight
- 540 lb
- Ships from
- Griffin, Georgia
- Flatbed or step-deck; the driver does not unload.
- You need a forklift with long forks or a crane with soft slings.
- Listed prices are before freight. The quote is per ZIP and per lane.
Standards the manufacturers list
ASTM D1998, Standard Specification for Polyethylene Upright Storage Tanks, is the construction standard the Enduraplas verticals are built to; it sets wall thickness by specific gravity rating.
Neither maker lists NSF/ANSI 61 on these three in our records, so we do not print it. If you need a potable listing at this capacity, the 750 and 1,300 gallon pages carry tanks that have one.
- IAPMO ApprovedListed by the maker on 1 of 3: Florida Only Two Compartment Low Profile Septic Tank - IAPMO Certified.
- FDA-compliant resinListed by the maker on 1 of 3: Plastic Vertical Water Storage Tank in Black.
Install day
Set the vertical on a level, compacted base that supports the whole 72 inch bottom. The low height puts the lid within reach from the ground, which is the other reason to buy it.
Fit bulkheads at the molded flats with the gasket on the wet side, pipe with a flexible connection, and support the pipe so the tank never carries it. The septic tank follows its drawing and Florida's code, not this page.
Tools: tank sizing calculator, chemical tank recommender, state regulations. Related: all Snyder tanks, vertical tanks, 10,000 gallon tanks.
Questions we get about 900 gallon tanks
How much does a 900 gallon plastic tank cost?
Listed at 1,599 to 1,841 dollars before freight on this page. The Enduraplas verticals are 1,638 and 1,841 dollars; the Florida septic tank is 1,599.
Will it fit under my ceiling?
At 60 inches tall, yes, under any standard 96 inch ceiling and most lean-tos. Check the 72 inch width through the door or gate on the way in.
What is the difference between the 1.2 and 1.5 walls?
Wall thickness. The 1.2 wall is rated for water and liquids up to 1.2 times its density; the 1.5 wall for 1.5 times. For water either works; for heavier liquids or a tank that bakes full in the sun, buy the 1.5.
Ready to size it?
Call 866-418-1777 and talk to a tank specialist, run the freight cost estimator for a real quote to your ZIP, or let Find My Tank narrow it by what you store and where it goes.
Shop by type: water tanks, septic tanks, rainwater tanks, storage tanks, cone tanks, vertical tanks. Tools: tank sizing calculator, chemical tank recommender, freight cost estimator.