SKU: 44584229493

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

Sale price$622.64 Regular price$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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4.4 ★★★★★
Based on 10 reviews
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Product Reviews
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Verified Purchase
D. Bailes
Lexington, US
★★★★★ 4
Cozy!
Color: Light Grey, Size: 30.0"L x 30.0"W x 7.0"Th
My bully breed loves her bed! It’s comfortable and soft which my dogs seems to love. It’s pretty durable as it’s held up pretty well in the washing machine. I wish it had a removable cover to make washing it easier.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 6, 2025
H
Verified Purchase
Helen M
Bozeman, US
★★★★★ 5
Our dog loves it!
Color: Dark Grey, Size: 36.0"L x 36.0"W x 7.0"Th
We adopted a rescue dog from the police pound and had kept her outside for several years. Recently she has been asking to come inside. I bought her this dog bed hoping to establish a place for her to settle and feel safe when she is inside. She is a medium size dog, about 60 pounds, and this bed fits her perfectly. It is warm and comfortable. She liked it from the start and goes to it when in the house. The grey fur-look fabric is neutral and blends in unobtrusively. It has held up very well. I washed it one time but don’t think it had room to move well in the washer so it didn’t get as clean as I hoped. It could probably be washed better by hand in the bathtub. It dried well in the dryer.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
P
Verified Purchase
pb
Massapequa, US
★★★★★ 3
Soft but flimsy
Color: Light Grey, Size: 36.0"L x 36.0"W x 7.0"Th, Color: Light Grey, Size: 36.0"L x 36.0"W x 7.0"Th
— Just wanted to add an update to say that after I left this review the seller reached out to me to get more feedback and ask how they could make the experience better. I didn’t respond because I was pretty busy. They followed up and informed me that they have issued a refund for my order and that I do not need to send the item back. I appreciate their customer service. — The product is extremely soft. The dogs seem to love it. However, the “donut” part doesn’t hold up at all and the whole bed feels really flimsy. Our dog was on it for a couple mins and when he got up there is an obvious dent from where he was laying. We got a similar bed from Costco a couple months ago for roughly the same price. The bed holds up its shape and feels solid/heavy. We wanted a second one but it was out of stock so we looked on Amazon and found this one. The dark gray one in the photo is from Costco and the light gray one is this product. I probably won’t send it back (too much hassle) but if your dogs are 25lbs+ this bed may not give the support you are looking for.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 4, 2023
A
Verified Purchase
Amazon Customer
Draper, US
★★★★★ 5
Great value
Color: Camel, Size: 36.0"L x 36.0"W x 7.0"Th
I have three dogs and they all fight over this bed. It is so fluffy. They love it. Great vibrant color, great fit for the dogs, medium and larger.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 28, 2026
K
Verified Purchase
Kathy
Lake Worth, US
★★★★★ 5
Nice dog bed
Color: Camel, Size: 36.0"L x 36.0"W x 7.0"Th
Dog's love them
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026

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