18L metal tank for water filter
Metal pressure tank for water filter 18 l (4.8 gal) with air cushion. Depending on the pressure in the system, it can store approx. 11- Read moreShow less
Metal pressure tank for water filter 18 l (4.8 gal) with air cushion. Depending on the pressure in the system, it can store approx. 11-12 l of net water . Made of metal in white color. Thread for valve 1/4" (from the top), diameter 27 cm , height 39 cm . Pre-charge pressure 0.7-0.9 bar with the possibility ofregulations. It has certifications PZH and NSF .
Specifications
- Accessory type
- Pressure tank
- Compatibility
- Universal RO systems
- Connection size
- 1/4″
- Height
- 390 mm
- Material
- Metal
- Product type
- Pressure tank
View full specifications
- Gross tank capacity
- 18 l
Description
18L metal tank for water filter is a pressure tank with an air cushion, designed for storing filtered water in domestic installations. It works perfectly with solutions such as a water filter, reverse osmosis filter, reverse osmosis system, and other water treatment systems. The total capacity is 18 l (4.8 gal), while the actual net amount of stored water is about 11-12 l, depending on the pressure in the system. The model is made of metal in white, equipped with a standard 1/4" thread on the top and the possibility of adjusting the pre-charge pressure.

Pressure tank for storing filtered water
A metal pressure tank with a total capacity of 18 liters has been designed to work with water filtration systems where a reserve of ready-to-use water is needed. Thanks to the air cushion, the tank allows convenient storage of filtered water and efficient drawing it from the installation.
It is a practical component of solutions such as an osmosis filter or an under-sink water filtration system. Its design makes everyday use of the installation easier, and its compact dimensions allow the tank to be conveniently placed in a typical installation space.
Main advantages
- total capacity 18 l (4.8 gal), suitable for domestic filtration systems,
- storage of about 11-12 l of net water depending on the pressure in the water supply network,
- pressure design with an air cushion,
- metal housing in white,
- standard 1/4" valve thread located on the top,
- pre-charge pressure 0.7-0.9 bar with adjustment option,
- compatibility with any shut-off valve,
- PZH and NSF approvals.
Application
The 18 l tank works well as part of installations where purified water should be available immediately after opening the tap. It is suitable for use with reverse osmosis-based systems and other solutions designed to improve the quality of utility water.
Thanks to the standard connection and popular dimensions, it can be used in many domestic systems where reliability, convenient connection, and an adequate reserve of filtered water are important.
Important operating information: the amount of net water stored in the tank depends on the pressure in the water supply network. The tank is factory prepared to operate at a pre-charge pressure of 0.7-0.9 bar, and this value can be adjusted. When selecting and installing, the height of 39 cm, diameter of 27 cm, and top connection with a 1/4" thread should be taken into account.
Construction and system fit
The tank is made of metal and finished in white, which makes it blend well with typical elements of domestic water treatment systems. The pressure design with an air cushion supports proper operation of the installation and ensures convenient drawing of the stored water.
The standard 1/4" thread located on the top makes connection easier, and compatibility with any shut-off valve increases the versatility of use. It is a good choice both when replacing a worn-out tank and when assembling a new filtration set.
Approvals and safety of use
The model has PZH and NSF approvals, which confirms its suitability for applications related to water intended for everyday use. This is an important feature for people who pay attention not only to capacity and compatibility, but also to build quality and the standards used in system components.
Additional important information
- diameter 27 cm
- height 39 cm
Technical specification
| Product type | metal pressure tank for water filter |
|---|---|
| Total capacity | 18 l |
| Capacity in gallons | 4.8 gal |
| Net water storage capacity | approx. 11-12 l |
| Construction type | tank with air cushion |
| Material | metal |
| Color | white |
| Valve thread | standard 1/4", top |
| Diameter | 27 cm |
| Height | 39 cm |
| Pre-charge pressure | 0.7-0.9 bar |
| Pressure adjustment | yes |
| Compatibility | fits any shut-off valve |
| Approvals | PZH, NSF |
Questions
What is the 18L metal tank for water filter used for?
The tank is used to store filtered water in a filtration system. Thanks to its pressure design with an air cushion, it allows convenient use of a water reserve without having to produce it exactly at the moment of drawing.
What is the actual amount of water that can be stored in the tank?
The total capacity of the tank is 18 l, while the net amount of stored water is about 11-12 l. This value depends on the pressure in the water supply network.
Is this tank suitable for a reverse osmosis system?
Yes, the tank is suitable for use with installations such as a reverse osmosis filter, an osmosis filter, and other domestic water filtration and treatment systems.
What thread does the tank connection have?
The tank has a standard 1/4" valve thread located on the top. This is a popular solution used in many water filtration installations.
Does the tank fit a standard shut-off valve?
Yes, the model fits any shut-off valve, which makes it easy to use as a replacement or as part of a new installation.
What are the tank dimensions?
The tank diameter is 27 cm and the height is 39 cm. Before installation, it is worth checking the available space at the installation site.
What is the pre-charge pressure and can it be adjusted?
The pre-charge pressure is 0.7-0.9 bar. The tank allows this value to be adjusted, which makes it possible to adapt it to the operating conditions of the installation.
Does the tank have approvals?
Yes, the product has PZH and NSF approvals.
What material is the tank made of?
The tank is made of metal and finished in white. This construction ensures durability and an aesthetic appearance in a domestic installation.
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