Trusted Quality in Every ComponentOur standard RO water tanks offer quality water storage for use with our residential reverse osmosis systems. These durable metal tanks will deliver a continuous and stable supply of purified water at a fast flow rate with high volume suitable for average to large size families. Supported by fully enclosed polypropylene and butyl reservoirs, these storage tanks provide airtight protection against leaks and contamination. Their stainless steel connectors ensure leach-free integrity while post-cured diaphragms eliminate the possibility of odors from the tank. Individually pressure-tested for safety, all our tanks are certified and CE approved for materials quality, safety, and durability making them suitable for use anywhere in the world.
Note: Tank ball valve is sold separately |
TANK-3
1/4" Male Pipe Thread
1/4" connection to
1/4" or 3/8" Tube size
9 1/16"D x 14 3/32"H
9 lbs
PRE-CHARGED PRESSURE @ 5 PSI (Tank - 3, 4 & 14)
TANK-3
1.4 Gal.
1.8 Gal.
2.0 Gal.
2.2 Gal.
2.4 Gal.
2.5 Gal.
We are proud to offer 1 day order processing (excluding weekends and holidays). Orders that are placed prior to 12:00 pm PST with express shipping services will be guaranteed to ship out the same day – subject to order verification and credit approval. Our shipping charges are based on the method of service and the location.
Products can be returned within 30 days from the date of invoice. Please carefully review APEC's Return Policy details and conditions.
Trusted Quality in Every ComponentOur standard RO water tanks offer quality water storage for use with our residential reverse osmosis systems. These durable metal tanks will deliver a continuous and stable supply of purified water at a fast flow rate with high volume suitable for average to large size families. Supported by fully enclosed polypropylene and butyl reservoirs, these storage tanks provide airtight protection against leaks and contamination. Their stainless steel connectors ensure leach-free integrity while post-cured diaphragms eliminate the possibility of odors from the tank. Individually pressure-tested for safety, all our tanks are certified and CE approved for materials quality, safety, and durability making them suitable for use anywhere in the world.
Note: Tank ball valve is sold separately |
TANK-3
1/4" Male Pipe Thread
1/4" connection to
1/4" or 3/8" Tube size
9 1/16"D x 14 3/32"H
9 lbs
PRE-CHARGED PRESSURE @ 5 PSI (Tank - 3, 4 & 14)
TANK-3
1.4 Gal.
1.8 Gal.
2.0 Gal.
2.2 Gal.
2.4 Gal.
2.5 Gal.
We are proud to offer 1 day order processing (excluding weekends and holidays). Orders that are placed prior to 12:00 pm PST with express shipping services will be guaranteed to ship out the same day – subject to order verification and credit approval. Our shipping charges are based on the method of service and the location.
Products can be returned within 30 days from the date of invoice. Please carefully review APEC's Return Policy details and conditions.
Overall rating: 4.875 / 5 from 8 reviews.
Review topics: ["water","pressure","setup"].
"I replaced my 4 gallon tank because it wasn’t holding any pressure. I replaced it with a 3 gallon tank and it is working great. I also ordered replacement filters but haven’t installed them yet. The ordering was easy and they were delivered within a couple of days."
"It's not heavy and it holds enough water for a small household."
"Worked perfect"
"Bought the RO-90 system with this 3 gallon tank and had it installed in October 2020. Soon after changing the filters for stages 1-3 in October 2022 the water starting coming out of the faucet very slowly. I'm not handy so I dealt with it for almost a year. Before it was time to change the filters in October 2023 I did online research and learned that the low water pressure could be caused by the tank. I watched and followed several YouTube videos that explained how to repressurize an RO tank. It was was a relatively easy task and the water pressure from the faucet is back to normal. Everything I found on the APEC website related to low water pressure mentions checking the pressure into your house but it doesn't mention that the tank may lose pressure after just over two years of use. I think the APEC website needs to say that their tanks may lose pressure and provide an explanation or link to video to explain how to fix it. The owner's manual section about low pressure from the faucet does have a brief statement about adding pressure to the tank (with no explanation) but the emphasis in the manual is on the water pressure in the house as if the tank pressure is rarely an issue. I don't know how long the pressure in tanks sold by other companies tends to last so I don't know if around two years is normal or not. Because of this it's hard to rate the tank so I'm giving four stars since the APEC website and owner's manual have room for improvement."
"I purchased a replacement water tank and made a few silly mistakes trying to install it. Jackson I believe his name was happened to answer the phone each time I called. He was very professional knowledgeable and personable. If only all customer service representatives we're like him"
"Setup was easy and better fit under the sink! Great water!"
"Looks like the bladder in my 15 year old unit was bad. The customer service rep helped troubleshoot and I replaced the tank. It took a bit to fill up but this solved my problem of low water pressure after about a quart of water!"
"Our 10 year old holding tank bit the dust this new tank from APEC is a direct replacement at a great price. We couldn’t be happier with our APEC R.O. System’s performance over the years and I was amazed the tank lasted this long"
