---
product_id: 12092416
title: "APEC TANK-14 14 Gallon Pre-pressurized Reverse Osmosis Water Storage Tank"
brand: "apec water"
price: "$474.21"
currency: USD
in_stock: true
reviews_count: 13
category: "Apec Water"
url: https://www.desertcart.us/products/12092416-apec-tank-14-14-gallon-pre-pressurized-reverse-osmosis-water
store_origin: US
region: United States of America
---

# 3/4” male NPT inlet/outlet for faster refill & flow 14 Gallon capacity, holds 10.7 gallons usable water NSF Certified food-grade bladder for safety & durability APEC TANK-14 14 Gallon Pre-pressurized Reverse Osmosis Water Storage Tank

**Brand:** apec water
**Price:** $474.21
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your hydration game with triple the capacity and premium purity!

## Quick Answers

- **What is this?** APEC TANK-14 14 Gallon Pre-pressurized Reverse Osmosis Water Storage Tank by apec water
- **How much does it cost?** $474.21 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/12092416-apec-tank-14-14-gallon-pre-pressurized-reverse-osmosis-water)

## Best For

- apec water enthusiasts

## Why This Product

- Trusted apec water brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Heavy-duty metal tank with stainless steel connectors and airtight polypropylene reservoir for leak-proof durability.
- • **Rapid Refill & Flow:** Larger 3/4” connections boost refill speed and faucet pressure—no more waiting for water.
- • **Versatile Installation:** Discharges efficiently in vertical or horizontal positions with included tank stand—fits your space, your way.
- • **Triple Capacity Upgrade:** Stores 3X more water than standard 4-gallon tanks for uninterrupted hydration.
- • **Premium Safety Standards:** NSF Certified and CE approved materials ensure pure, odor-free water you can trust.

## Overview

The APEC TANK-14 is a 14-gallon pre-pressurized reverse osmosis water storage tank designed for residential RO systems. It holds up to 10.7 gallons of purified water, features a food-grade NSF certified bladder, and supports both vertical and horizontal installation. With a larger 3/4” inlet/outlet for faster refills and durable metal construction, it delivers high flow rates and reliable, odor-free water storage—perfect for busy households craving consistent, clean hydration.

## Description

Our 14 gallon reverse osmosis water storage tank offers high volume water storage for use with all APEC residential reverse osmosis systems and most brands of 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. 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. Specifications: Dimensions: 15 3/8 inch D x 22 7/8 inch H Weight: 30 lbs Optional tank ball valve: 3/4 inch connection to 1/4 inch or 3/8 inch tube size (not included with the tank) APEC Water does not distribute or sell our products to any 3rd party sellers on desertcart. Please purchase genuine APEC Water products from desertcart or APEC Water directly for authenticity.

Review: Great little RO tank - Works great, easy to install, I replaced a 10 year old tank that started leaking at the Schrader valve, this tank did the trick. Amazing volume of water before it starts to slow.
Review: Its Great!!!! - Works great! I got the water pressure back. Easy to install.

## Features

- Pre-pressurized 14 Gallon Reverse Osmosis RO Water Storage Tank (holds up to 10.7 gallons of water)
- Discharge efficiently in a vertical or horizontal position with tank stand.
- Food grade bladder and NSF Certified to ensure quality, safety and durability
- Upgrade for small 4 gal tanks- holds 3X more water with improved faucet delivery pressure
- Larger 3/4” male NPT Inlet/Out connection for faster tank refills and flow rate

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00NQC516W |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #30,177 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #66 in Under-Sink & Countertop Filtration |
| Brand | APEC WATER |
| Color | White |
| Customer Reviews | 4.6 4.6 out of 5 stars (3,209) |
| Date First Available | September 19, 2014 |
| Global Trade Identification Number | 00854961005570 |
| Installation Type | Under Sink |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 22.5 pounds |
| Item model number | TANK-14-A |
| Manufacturer | APEC WATER SYSTEMS |
| Model Name | TANK-14 |
| Package Information | Stand |
| Part Number | TANK-14-A |
| Pattern | Filter |
| Product Dimensions | 16"L x 16"W x 23"H |
| Size | 14 Gallons |
| Special Feature | Heavy Duty |
| Special Features | Heavy Duty |
| Style | TANK-14 |
| Supported Water TDS Level Maximum (PPM) | 10 |
| UPC | 854961005570 |

## Product Details

- **Brand:** APEC WATER
- **Capacity:** 14 Gallons
- **Included Components:** TANK-14
- **Installation Type:** Under Sink
- **Material:** Stainless Steel
- **Model Name:** TANK-14
- **Package Information:** Stand
- **Product Dimensions:** 16"L x 16"W x 23"H
- **Purification Method:** Reverse Osmosis
- **Special Feature:** Heavy Duty

## Images

![APEC TANK-14 14 Gallon Pre-pressurized Reverse Osmosis Water Storage Tank - Image 1](https://m.media-amazon.com/images/I/61Ll+WZNzuL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: My well water pressure range is from 40 low side to 65 high side.  What can I expect for the amount of water stored in this tank?**
A: The measurement is based on the standard RO systems with the recorded input water pressure.40psi - tank fills 6.1 gallons50psi - tank fills 7.8 gallons60psi - tank fills 9.0 gallons70psi - tank fills 9.7 gallonsActual storage capacity may vary.

**Q: What are the exact dimensions of this tank?  amazon says 18x18x25 and the manufacture web site says 15 3/8"d x 22 7/8"h.  i have a tight fit.**
A: My tank stands 23" high and 15.5" wide.  It is sitting on the provided base.

**Q: The tank ships with a black rubber plug in the valve fitting, should this be removed?**
A: Hello, no, there is an opening within that diaphragm for the the water to enter and exit. Please leave it in place. If you need any help or assistance, feel free to contact us directly by calling 1-800-880-4808 or e-mailing us at info@apecwater.com. We are in the office from Monday-Friday from 8:00am-5:30pm PST. Best Regards, APEC Customer Service

**Q: This tank will work if i use it with the valve facing up, but will there be any negative affects to the bladder if i use it in this orientation?**
A: Mine has been valve up since I got it, still works great. I'm pretty sure it can't and doesn't make a difference.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great little RO tank
*by A***R on November 26, 2025*

Works great, easy to install, I replaced a 10 year old tank that started leaking at the Schrader valve, this tank did the trick. Amazing volume of water before it starts to slow.

### ⭐⭐⭐⭐⭐ Its Great!!!!
*by A***N on December 4, 2025*

Works great! I got the water pressure back. Easy to install.

### ⭐⭐⭐⭐⭐ Does your APEC system act like its prostate is inflamed?
*by A***R on December 12, 2025*

I bought my APEC system in 2018. I've done yearly filter changes, and the occasional RO filter replacement. The system ran great. Then several weeks ago, I noticed the water was coming out in much lower quantities. I could maybe get half a liter out and then it would just dribble. It was like it had an inflamed prostate. I read some other reviews and decided to buy this tank. Problem fixed! I get a nice, full flow of water and much more than a little tinkle. The tanks are only supposed to be good for five years, and then the diaphragm inside them slowly loses pressure which means the tank will fill, but you won't get very much water out of it since the diaphragm has lost pressure. After I removed the old tank it was almost full and there was over 2 gallons of water still in it that wouldn't come out of the faucet anymore.

## Frequently Bought Together

- APEC TANK-14 14 Gallon Pre-pressurized Reverse Osmosis Water Storage Tank
- APEC Water Systems Tank Ball Valve (3/4" NPTF, 3/8" Output)
- APEC Water Systems Ultimate RO-Hi Top Tier Supreme Certified High Output Fast Flow Ultra Safe Reverse Osmosis Drinking Water Filter System

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-25*