WodaRO Graphite valve set for reverse osmosis filters with a tank: four-way valve and shut-off valve. Automatically cuts off the water supply after the tank is filled and helps prevent unnecessary drainage to the sewage system. Installation on 1/4" John Guest (JG) quick connectors with O-ring seals. Includes securing clips.
The four-way check shut-off valve for the GRAPHITE RO filter is a practical kit for systems operating reverse osmosis with a tank. The set includes a four-way valve and a shut-off valve, which support proper system operation, automatically cut off the water supply after the tank is filled, and help reduce unnecessary discharge to the sewer. This is a functional solution for a reverse osmosis filter, reverse osmosis system, and modern water filtration system, installed on 1/4-inch John Guest quick connectors.

The WodaRO Graphite valve set has been prepared for use with reverse osmosis filters equipped with a tank. The kit includes a four-way valve and a shut-off valve — two components that have a major impact on the correct operation of the entire system.
In everyday use, the set supports automatic stopping of the water supply after the tank is filled and helps limit unnecessary water flow to the sewer. As a result, the osmosis filter can operate more efficiently, and the entire water treatment system works in a more economical way.
In RO systems with a tank, it is very important to control the water supply and reduce unnecessary discharge to the sewer. That is exactly what this set is designed for. Once the tank is full, the four-way valve disconnects the water supply to the filter, and the shut-off valve helps stop the continuous flow of waste water.
This is especially important where there is a problem of continuous water flow to the sewer despite the tank being full. The set therefore supports not only the correct operation of the installation, but also its more economical use.
The set is designed for reverse osmosis filters with a tank. Connection is made using 1/4" John Guest (JG) quick connectors, and sealing is provided by O-rings. The kit also includes securing clips.
The installation has been designed for convenient setup. The hoses are push-fit connected, without the need for tools. This makes both replacing the component and installing it in a new or older reverse osmosis system easier.
The use of 1/4" John Guest quick connectors and O-ring sealing results in secure hose seating and efficient system operation. The securing clips additionally stabilize the connections.
In practice, even a small component can determine whether the system operates correctly and efficiently. In RO systems with a tank, the valves are responsible for proper water flow control, which is why their selection matters for everyday user comfort.
This set works well both in new installations and when servicing older systems. If the goal is efficient water treatment, reduced unnecessary discharge to the sewer, and simple installation, this is a solution well suited to typical home RO systems.
| Parameter | Value |
|---|---|
| Product name | Four-way check shut-off valve for the GRAPHITE RO filter |
| Kit type | Valve set for reverse osmosis filters with a tank |
| Kit components | Four-way valve, shut-off valve, securing clips |
| Four-way valve function | Disconnecting the water supply to the RO filter after the tank is filled |
| Shut-off valve function | Preventing continuous water flow to the sewer when the tank is full |
| Compatibility | Systems from most reverse osmosis filter brands |
| Connection type | 1/4" John Guest (JG) quick connectors |
| Installation method | Push-fit, no tools required |
| Sealing | On built-in O-rings |
| Operating temperature | From 2 to 42 degrees Celsius |
| Intended use | Reverse osmosis filters with a tank |
| Operation after tank filling | Automatic shut-off of the water supply and assistance in stopping unnecessary discharge to the sewer |
The four-way valve is responsible for disconnecting the water supply to the reverse osmosis filter when the tank is filled. This means the system does not continue to operate unnecessarily once the tank has reached the full water level.
The shut-off valve helps prevent continuous water flow to the sewer, even when the tank is already full. It is an important component for more economical operation of the entire system.
The kit fits systems from most reverse osmosis filter brands, especially installations with a tank and 1/4-inch John Guest quick connector connections.
No. The hoses are connected by push-fit, so installation is simple and does not require tools. The securing clips provide additional connection stability.
The kit uses 1/4" John Guest (JG) quick connectors, which are commonly used in RO installations and make it easy to connect the lines quickly.
The operating temperature range is from 2 to 42 degrees Celsius.
Yes. The kit is suitable both for new and older water filtration systems based on reverse osmosis, especially where there is a problem of unnecessary water flow to the sewer.
The set includes three items: a four-way valve, a shut-off valve, and securing clips.
WodaRO Graphite valve set for reverse osmosis filters with a tank: four-way valve and shut-off valve. Automatically cuts off the water supply after the tank is filled and helps prevent unnecessary drainage to the sewage system. Installation on 1/4" John Guest (JG) quick connectors with O-ring seals. Includes securing clips.