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Honeywell FF06-5/4AA is the original mechanical filter for preliminary water filtration at the main connection. The mesh insert made of stainless steel captures mechanical impurities from 100 microns (including rust and sand). The filter has a 5/4" connection, a transparent housing for sediment inspection, and a flushing function by opening the ball valve without interrupting the flow.filtered water.
FF06-5/4AA Honeywell is an original water filter for preliminary mechanical filtration, designed for installation on the main supply line. This mechanical sediment filter with a 5/4" connection effectively retains contaminants from 100 microns, such as rust, sand, or installation deposits. Thanks to the mesh rinsing function activated by opening the ball valve, it supports efficient water treatment and protects fittings, appliances, and the entire water filtration system, without the need to interrupt the flow of filtered water.

Honeywell FF06 is a proven sediment filter for drinking water, used as the first stage of installation protection. Its task is to capture mechanical contaminants present in the incoming water before it reaches fittings, valves, household appliances, or further treatment stages.
The stainless steel mesh insert retains particles sized 100 microns and larger. In practice, this means effectively limiting the entry of such contaminants into the installation as:
This is especially important when the filter is intended to protect not only the installation itself, but also downstream water treatment devices such as under-sink sets, filtration stations, or systems requiring preliminary cleaning of the medium before more precise filtration.
The FF06 filter has been designed for preliminary water filtration on main supply connections. Thanks to its compact design, it can also be installed where installation space is limited.
This model works well in all types of installations, especially in:
The filter is intended for use with drinking water. In process installations, it can be used where the operating parameters match the device requirements and the nature of the medium.
Honeywell FF06 belongs to the group of filters with a filter mesh rinsing function. This means that during normal operation, water flows into the filter chamber and then passes through the filter insert from the outside. Mechanical contaminants are retained on the outer surface of the mesh.
Deposits accumulate at the bottom of the transparent housing, so the level of contamination can be monitored continuously. They are removed by briefly opening the ball valve. During this time, the filter insert is rinsed and the accumulated contaminants are flushed out.
A key advantage of this solution is uninterrupted system operation — the filter ensures a supply of filtered water even during rinsing.
The filter must be installed in a horizontal position, with the filter chamber facing downward. This installation method is important for proper operation, sediment accumulation in the housing, and effective filter rinsing.
Thanks to this design, the filter performs well as the first stage of installation protection. It can work together with subsequent water purification stages when more precise filtration solutions are used in the system.
The Honeywell FF06 filter consists of the following components:
The choice of materials has a direct impact on the filter's durability and safe use in drinking water installations. This model uses:
The filter has been designed for convenient operation. The transparent bowl allows the amount of collected sediment to be assessed without disassembling the device. When a larger amount of contaminants appears at the bottom of the housing, they can be removed by briefly opening the ball valve.
This solution helps maintain the filter's efficiency and reduces the need for frequent disassembly. An additional advantage is the easy replacement of both the filter insert and the filter housing.
A mechanical filter does not replace devices intended to improve the taste, odor, hardness, or chemical composition of water. Its primary function is to retain mechanical contaminants and protect the installation as well as subsequent elements of the treatment system.
| Model | FF06-5/4AA |
|---|---|
| Brand | Honeywell |
| Product type | Mechanical sediment filter |
| Purpose | Preliminary water filtration on main supply connections |
| Medium | Water |
| Application | Drinking water |
| Filtration accuracy | 100 microns and larger |
| Filter insert material | Stainless steel |
| Body material | Dezincification-resistant brass |
| Threaded connector material | Brass |
| Filter housing material | Impact-resistant, transparent synthetic material |
| Installation position | Horizontal, with the filter chamber facing downward |
| Maximum operating pressure | 16 bar |
| Maximum operating temperature | 40°C |
| Connection diameter | 5/4" |
| Service method | Rinsing by opening the ball valve |
| Certification | DIN/DVGW |
| Drinking water compliance | KTW requirements |
It is a mechanical filter for preliminary water filtration, most often installed on the main supply line. Its task is to retain mechanical contaminants such as rust, sand, hemp fibers, and other deposits in order to protect the installation and connected devices.
The stainless steel mesh insert retains mechanical contaminants sized from 100 microns. This includes, among others, rust, sand, and typical deposits appearing in water installations.
No. One of the important advantages of the FF06 model is the continuous supply of filtered water also during filter rinsing. Sediment is removed by briefly opening the ball valve.
The transparent housing made of impact-resistant synthetic material helps with this. Thanks to it, you can quickly check how much sediment has collected in the chamber and when it is worth carrying out rinsing.
The filter should be installed horizontally, with the filter chamber facing downward. This position is required for proper device operation and effective contaminant removal.
Yes. The FF06 model is intended for drinking water, has DIN/DVGW certification, and meets KTW requirements for drinking water.
Yes. The mechanical filter works very well as a preliminary stage before further water treatment. It can protect subsequent installation components and filtration devices against mechanical contaminants.
The filter includes: a body with internal and external thread, threaded connectors, a fine-mesh filter insert, a transparent housing, a ball valve, and a box wrench for disassembly and assembly of the filter housing.
The filter has a 5/4" connection, a maximum operating pressure of 16 bar, and a maximum operating temperature of 40°C. It is intended for use with water and for installation on main supply connections as a pre-filter.
Honeywell FF06-5/4AA is the original mechanical filter for preliminary water filtration at the main connection. The mesh insert made of stainless steel captures mechanical impurities from 100 microns (including rust and sand). The filter has a 5/4" connection, a transparent housing for sediment inspection, and a flushing function by opening the ball valve without interrupting the flow.filtered water.