fol-da-tank|SKU:PW-25-var-51406-61c81c

Fol-Da-Tank Bladder — Mobile Water Storage 25 to 20,000 Gallons

Field-Proven Mobile Water Storage from 25 to 20,000 Gallons

Three water types — Potable, gray, or black water options
RF welded seams — Extended service life under field conditions
Rated to -40°F — Operates in severe cold weather
25 to 20,000 gallons — Capacity for any site requirement
NSF/ANSI 61 certified — Safe for emergency drinking water
  • FREE Compliance Documentation -- NSF/ANSI 61 cert docs included with potable models — no chasing the manufacturer
  • FREE Freight -- LTL delivery to your site — call for liftgate and job-site options
  • FREE Pre-offer Spec Review -- We verify bladder type and size for your application before you order

Price range: $579.00 through $12,569.00

30-day money back · No restocking fee

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Ships in 3–5 Days Heavy-duty crating included.
4.9/5 Stars 2,400+ verified reviews.

In the box

  • Fol-Da-Tank bladder (selected size and type)
  • Product specification sheet
Fol-Da-Tank Bladder
Fol-Da-Tank Bladder — Mobile Water Storage 25 to 20,000 Gallons
$579.00 – $12,569.00Price range: $579.00 through $12,569.00

Field-Proven Mobile Water Storage from 25 to 20,000 Gallons

Fol-Da-Tank bladder tanks deliver field-proven mobile water storage for potable, gray, and black water applications. Built-to-spec with RF welded seams and industrial-grade chemical resistance, these bladders handle everything from emergency drinking water to decontamination waste. Available from 25 to 20,000 gallons with code-compliant NSF / ANSI 61 certification on potable (blue) models. Compact when empty, heavy-gauge construction resists mildew, rot, and solar heat down to -40 degrees Fahrenheit. Ships free with full compliance documentation. Pay as low as $49/month with Affirm.

FREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORT
NSF / ANSI 61 Certified
-40°F Weather Tolerance
RF Welded Seams
3 Water Type Options
25 – 20,000 Gal
Capacity Range
-40°F
Min Temperature Rating
NSF / ANSI 61
Potable Standard
Right Spec Before It Ships

Right Spec Before It Ships

Ordering a black water bladder when your operation requires NSF/ANSI 61 potable certification creates a compliance failure on arrival. Tank Vault's pre-offer spec review catches that mismatch before your order processes. Tell us your application — emergency drinking water, gray water storage, or black water chemical containment — and we verify the correct bladder type and capacity for your site. The same process that protects fuel tank buyers from wrong UL classifications applies here. We confirm your bladder type, size, and material compatibility before shipment so you receive exactly what your operation requires, not what a generalist vendor guessed.

RF Welded Seams Hold Under Pressure

RF Welded Seams Hold Under Pressure

Fol-Da-Tank constructs every bladder with RF welded seams rather than stitched or glued joints. RF welding fuses the material at the molecular level, creating a seam that resists separation under repeated fill-and-drain cycles. This construction method extends service life in demanding applications — brush firefighting where bladders see rapid deployment and deflation, construction sites where terrain is uneven, and emergency response where failure is not an option. The industrial-grade liner material resists chemical contamination, mildew, rot, and solar heat degradation, maintaining structural integrity through extended outdoor exposure.

Severe Weather Tolerance to -40°F

Severe Weather Tolerance to -40°F

Field operations do not stop when temperatures drop. These bladders maintain flexibility and structural performance down to -40 degrees Fahrenheit, making them suitable for winter firefighting operations in northern climates, cold-weather construction sites, and emergency water supply in frozen conditions. The compact storage profile means a 5,000-gallon bladder collapses small enough for truck transport when empty, then deploys quickly on site. From remote brush firefighting to decontamination waste collection at industrial sites, the temperature rating ensures the bladder performs when conditions are worst, not just when conditions are convenient.

Site Compatibility

Verify your deployment site meets these conditions before ordering.

  • Flat surface area large enough for fully inflated bladder dimensions
  • Ground clear of sharp objects, rocks, and protruding debris
  • Water type matches selected bladder classification (potable, gray, or black)

Built for Real-World Deployment

Fleet managers, fire departments, and site superintendents rely on Fol-Da-Tank bladders across a range of critical operations.

Emergency Drinking Water
Rainwater Harvesting
Remote & Brush Firefighting
Construction Site Water
Decontamination Waste Storage

Full specifications

At a glance

Dimensions
25 Gallon, 50 Gallon, 75 Gallon, 100 Gallon, 150 Gallon, 250 Gallon, 275 Gallon, 300 Gallon, 525 Gallon, 800 Gallon, 1140 Gallon, 1250 Gallon, 1340 Gallon, 1500 Gallon, 2000 Gallon, 2500 Gallon, 3000 Gallon, 4000 Gallon, 5000 Gallon, 6000 Gallon, 7500 Gallon, 10000 Gallon, 15000 Gallon, 20000 Gallon
Surface
See product page
Full specifications9 data points across 4 categories

Dimensions

Available Sizes25 Gallon, 50 Gallon, 75 Gallon, 100 Gallon, 150 Gallon, 250 Gallon, 275 Gallon, 300 Gallon, 525 Gallon, 800 Gallon, 1140 Gallon, 1250 Gallon, 1340 Gallon, 1500 Gallon, 2000 Gallon, 2500 Gallon, 3000 Gallon, 4000 Gallon, 5000 Gallon, 6000 Gallon, 7500 Gallon, 10000 Gallon, 15000 Gallon, 20000 Gallon
Filled DimensionsSee product page
WeightSee product page

Power & Performance

Temperature Tolerance-40 degrees Fahrenheit
Weather ResistanceResists chemical contamination, mildew, rot and solar heat

Materials

Seam ConstructionRF welded seams for longer life
Liner MaterialSee product page

Compliance & Warranty

Potable Water StandardNSF / ANSI 61 standard for drinking water
Type OptionsPotable Water (Blue), Gray Water (Orange), Black Water (Black)

The Tank Vault Promise

Every order ships with the documentation and support your operation requires — no chasing the manufacturer afterward.

Free ShippingLTL delivery to your site — call for liftgate or job-site delivery options.
Free Compliance DocumentationNSF / ANSI 61 certification and product specs included with every order — no chasing the manufacturer.
30-Day ReturnsUninstalled, original packaging — contact us immediately if delivery damage.
★★★★★
“Ordered the 1,500-gallon blue bladder for our wildfire response trailer. Arrived on schedule, NSF/ANSI 61 cert was in the box, and the RF welds held through three deployments last season. Tank Vault confirmed the right type before I paid — no guessing.”
M
Mike L.Boise, ID

Fol-Da-Tank bladder tanks provide mobile water storage.  The bladder tanks are available for storage of potable water, gray water or black water.

The bladder tanks are available in sizes that range from 25 gallons to 20,000 gallons.

Applications:

  • Emergency drinking water storage.
  • Rainwater harvesting.
  • Firefighting in remote areas.
  • Brush firefighting.
  • Construction sites.
  • Decontamination waste storage.

Type:

  • Potable Water – Blue Color – meets  NSF / ANSI 61 standard for drinking water.
  • Gray Water – Orange Color – storage of gray water.
  • Black Water – Black Color – heavy duty chemical resistant.

Features:

  • The blue potable water bladders meet NSF / ANSI 61 standard.
  • Compact and easy to store.
  • Resists chemical contamination, mildew, rot and solar heat.
  • RF welded seams for longer life.
  • Severe weather tolerance to -40 degrees Fahrenheit.
  • Fills and empties in minutes by pump or gravity flow.
  • Easily handled by one person.
  • 1.5″ / 40mm ball valve with female threads.
  • Large 4″  / 100 mm diameter fill opening.
  • Transportable by truck.

Available Sizes / Filled Dimensions / Weight:

  • 25 gallon: 24″L x 36″W x 8″H; 10 pounds
  • 50 gallon: 36″L x 52″W x 9″H; 14 pounds
  • 75 gallon: 42″L x 54″W x 9″H; 16 pounds
  • 100 gallon: 4’6″L x 4’10″W x 16″H; 18 pounds
  • 150 gallon: 60″L x 60″W x 12″H; 20 pounds
  • 250 gallon: 60″L x 84″W x 14″H; 23 pounds
  • 275 gallon: 6’6″L x 6’W x 16″H; 25 pounds
  • 300 gallon: 66″L x 84″W x 14″H; 30 pounds
  • 525 gallon: 8’3″L x 5’4″W x 18″H; 33 pounds
  • 800 gallon: 10’L x 6’W x 2’H; 42 pounds
  • 1,140 gallon: 12’L x 7’W x 2’H; 58 pounds
  • 1,250 gallon: 114″L x 14’W x 8″H; 60 pounds
  • 1,340 gallon: 14’L x 7’W x 2’H; 64 pounds
  • 1,500 gallon: 14’11″L x 9’5″W x 2’H; 67 pounds
  • 2,000 gallon: 10’5″L x 12’W x 2’H; 82 pounds
  • 2,500 gallon: 12’7″L x 14’W x 2’H; 90 pounds
  • 3,000 gallon: 11’10″L x 14’W x 2’6″H; 104 pounds
  • 4,000 gallon: 18’L x 14’W x 2’6″H; 120 pounds
  • 5,000 gallon: 14’7″L x 18’10″W x 3’H; 142 pounds

Liner Material

  • 22 ounce vinyl

Additional Options:

  • See all Fold DA Tank options.
  • Check other Water Bladders or Gray Water Tanks.

Additional information

TYPE

Black Water (Black), Gray Water (Orange), Potable Water (Blue)
Size

100 Gallon, 10000 Gallon, 1140 Gallon, 1250 Gallon, 1340 Gallon, 150 Gallon, 1500 Gallon, 15000 Gallon, 2000 Gallon, 20000 Gallon, 25 Gallon, 250 Gallon, 2500 Gallon, 275 Gallon, 300 Gallon, 3000 Gallon, 4000 Gallon, 50 Gallon, 5000 Gallon, 525 Gallon, 6000 Gallon, 75 Gallon, 7500 Gallon, 800 Gallon

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Frequently Asked Questions

Fol-Da-Tank offers three bladder types. Blue potable water bladders meet NSF/ANSI 61 standards and are for emergency drinking water storage. Orange gray water bladders handle non-hazardous wastewater. Black water bladders are heavy-duty chemical resistant for decontamination waste and industrial containment. Selecting the wrong type creates compliance problems — a black water bladder cannot be used for potable storage, and a potable bladder lacks the chemical resistance for decontamination applications. Contact Tank Vault before ordering and we will verify the correct bladder type for your specific application.
Yes. The blue potable water bladder meets NSF/ANSI 61, the standard for drinking water system components. This certification confirms the liner material does not introduce harmful contaminants into stored water. When your operation requires emergency drinking water storage for disaster response, crew supply, or public health applications, this bladder satisfies the relevant standard. Tank Vault includes all applicable certification documentation with your order so you have the paperwork on hand when inspectors or compliance officers request it.
Fol-Da-Tank bladders range from 25 gallons to 20,000 gallons. The correct size depends on your water volume requirement, available deployment space, and transport constraints. A collapsed bladder is compact, but filled dimensions increase significantly with capacity. Tell Tank Vault your application — firefighting water supply, construction site water storage, emergency drinking water reserve — and we will help you select the right capacity tier. This pre-offer spec review prevents ordering a bladder that is too large for your deployment area or too small for your operational needs.
Lead times vary by size and type. Smaller standard bladders typically ship faster than large-capacity or specialty configurations. Contact Tank Vault with your required size, bladder type, and delivery deadline before ordering. We coordinate with Fol-Da-Tank to confirm production and shipping timelines for your specific order. If you have a job site deadline or an emergency response deployment date, tell us upfront and we will confirm whether the timeline is achievable before you commit to the purchase.
No. Fol-Da-Tank bladder tanks are designed for water storage applications — potable water, gray water, and black water. They are not rated, tested, or certified for flammable liquid storage. Fuel storage requires UL-listed aboveground or underground storage tanks with specific secondary containment, venting, and fire resistance ratings. Using a water bladder for fuel creates a serious safety and compliance hazard. If you need fuel storage, Tank Vault carries UL 142 and UL 2085 Fireguard fuel tanks that meet NFPA 30 and EPA SPCC requirements.
That is exactly why Tank Vault offers free pre-offer spec review. Contact us with your application, water type, and capacity requirements before placing your order. We verify the correct bladder type and size to prevent mismatches. If a bladder arrives and does not match your specification, contact us immediately. Our 30-day return policy covers uninstalled bladders in original packaging. We resolve specification errors without runaround — but catching the issue before shipment is faster and avoids freight costs for both parties.
Yes. Tank Vault ships Fol-Da-Tank bladders nationwide. Standard orders ship free via LTL freight. For job site delivery with specific requirements — liftgate service, limited access locations, or delivery scheduling around construction timelines — contact us before placing your order. We coordinate freight logistics to match your site conditions. Collapsed bladders are compact for transport, but large-capacity units still require appropriate freight planning. We handle that coordination so the bladder arrives when and where you need it.
SKU: PW-25 Categories: , Brand:

The Tank Vault Promise

Every order ships with the documentation and support your operation requires — no chasing the manufacturer afterward.

Free Shipping LTL delivery to your site — call for liftgate or job-site delivery options.
Free Compliance Documentation NSF / ANSI 61 certification and product specs included with every order — no chasing the manufacturer.
30-Day Returns Uninstalled, original packaging — contact us immediately if delivery damage.

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About fol-da-tank Bladder Tank

fol-da-tank is a trusted manufacturer of premium bladder tank. TankVault is an authorized dealer offering the full fol-da-tank lineup with free delivery, price match guarantee, and expert support.

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