SKU: 44584229493

40 Gallon Pressurized RO Water Storage Tank | Flexwave Commercial RO Tanks

$622.64 $691.82
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Description

40 Gallon Pressurized RO Water Storage Tank | Flexwave Commercial RO Tanks40 Gallon RO Water Storage Tank for Commercial RO Systems Flexwave Composite Pressurized RO Tank Flexwave RO 40 Gallon Water Storage Tanks use a butyl rubber diaphragm to store and deliver reverse osmosis water using air pressure within the tank. Flexwave light commercial and residential RO composite storage vessels offer high strength, precision molded internal liner reinforced w continuous strand fiberglass and sealed w high grade epoxy resin.


40 Gallon RO Water Storage Tank for Commercial RO Systems

Flexwave Composite Pressurized RO Tank

Flexwave RO 40 Gallon Water Storage Tanks use a butyl rubber diaphragm to store and deliver reverse osmosis water using air pressure within the tank.

Flexwave light commercial and residential RO composite storage vessels offer high strength, precision molded internal liner reinforced w/ continuous strand fiberglass and sealed w/ high grade epoxy resin. Flexwave RO tanks are designed with oversized copolymer polypropylene lower water chamber with 100% butyl rubber diaphragm. Lightweight, non-corrosive construction for maximum life and maximum flexibility.

Flexwave composite tanks flaunt a seamless polypropylene liner that eliminates top and bottom leak issues, as well as stainless steel reinforcing rings that back up all threaded openings. Injection molded domes increase shape consistency and strength while wetted surfaces made of high quality polypropylene add zero taste or odor.

Flexwave FWRO40 can be used as a direct replacement for ROMATE40, which we have discontinued.

FLexwave RO Stroage Tanks are Quality Tested and Certified:

  • Made in USA
  • Certified to WQA-NSF/ANSI 61 and WQA-NSF/ANSI 372
  • All Flexwave tanks are 100% pressure tested and carry a 5 year limited warranty.

RO Tank Specifications

Model: FWRO40
Brand: Flexwave
Tank Volume: 40 Gallons (151 Liters)
Draw Down:
(@ 10 psi pre-charge)		 24.7 gallons @ 50 psi supply.
26.8 gallons @ 60 psi supply.
System Connection: 1-1/4" MNPT
Tank Dimensions:

 21.4" Dia. x 25.6"H
(81.0 cm x 96.9 cm)
Tank Weight (empty): 38 lbs (17.2 kg)
Max. Working Pressure: 125 psi
Max. Working Temperature: 120°F (48.8°C)
Pre-Charge (adjustable): 20 psi
Shell:

 Copolymer polypropylene tank reinforced with fiberglass and sealed with epoxy resin.
Water Chamber: 100% butyl rubber diaphragm w/ copolymer polypropylene lower chamber
Connection: Male socket, rigid sch. 80 PVC
Air Valve: Brass with rubber o-ring seal
Replaces Models:



 30865
CH33472
RO40
ROMATE-40
S-PR40SF
Compatible With:



 Aqua-Pure/3M Purification 55984-08
Everpure DEV3115-72
Everpure DEV311572
Everpure EV3115-72
Everpure EV311572

Additional Features & Benefits of Flexwave Storage Tanks

CAD-2 Water Chamber:

  • Used in all pressurized captive air composite and steel tanks
  • 100% Butyl rubber diaphragm
  • Cross-linked polypropylene lower chamber
  • Industry best sealing system, patented clinch ring, eliminates separation
  • Adds zero taste or odor
  • Virtually eliminates condensation
  • Oversized to reduce wear for extended life with high volume storage

Composite Tanks:

  • Seamless polypropylene liners eliminate top and bottom shell leak issues
  • Stainless steel reinforcing ring backs up all threaded openings
  • Injection molded domes increase shape consistency and strength
  • Wetted surfaces made of high quality polypropylene to add zero taste or odor
  • Continuous wound fiberglass and high temperature epoxy resin external shell eliminates corrosion
  • Precision molded rigid PVC bottom fittings

Durable Injection Molded Plastic Base:

  • Ribbed for exceptional strength and durability
  • Molded bolt holes for seismic and skid mount applications
  • Eliminates corrosion
  • EZ connection makes storage and contact tank installation quick & EZ

Applications for Pressurized Water Storage Tanks

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 44584229493

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Dennis
Battle Creek, US
★★★★★ 5
Good shoe inexpensive
Size: 11.5, Color: Black/White
Perfect. The fit and slip on ability. And it came in an actual shoe box.
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Reviewed in the United States on May 24, 2026
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Dawna Lee
Cuba, US
★★★★★ 5
Great shoes
Size: 13, Color: Black/White
Great shoes, bought for my grandson's birthday, he was very pleased with them. I'm very pleased that they came in many sizes.
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Reviewed in the United States on May 19, 2026
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David Zielinski
Dallas, US
★★★★★ 5
Great Value for the Money!
Size: 10.5, Color: Black/White
Pleasantly surprised at this price point! Comfy, sturdy and a way better sole the Sketchers! Amazon products in general have been really good quality at affordable prices!
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Reviewed in the United States on May 3, 2026
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Gaile Kausch
New York, US
★★★★★ 1
Size not as expected
Size: 11.5, Color: Grey
Ordered same size as I always do. Way too large. Size listed was off by a long shot
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Reviewed in the United States on May 22, 2026
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Professor's opinion
Carnegie, US
★★★★★ 4
Lightweight and True to Size — Best for Casual Use
Size: 9.5, Color: Navy, Size: 9.5, Color: Navy
It is nice to see the Amazon Essentials brand expand from household essentials to apparel and shoes. I ordered the Amazon Essentials Men's Lightweight Knit Running Sneakers. The product is made in Vietnam and comes in a shoe box, which is nice. I've noticed that quite often, inexpensive shoes are delivered just in a plastic bag. The sneakers are ready to use and have no odors from glue, organic solvents, etc., which is common nowadays. I wear a size 9W or 9.5. These sneakers are 9.5 and feel like a typical 9.5 size, without surprises. The product is advertised as lightweight, and it is true. Each shoe weighs below 0.6 lb (265 grams). Inside is soft memory foam; the shoes sit on the foot well, snug enough and comfortable, and are easy to put on and take off. They seem like a good fit for spring and summer as casual footwear or for light gym use. The sole is simple and not designed for performance or high-impact activities. Overall, a solid, reasonably priced, comfortable everyday option, though not intended for serious running or training.
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Reviewed in the United States on April 15, 2026

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