The Midea QZBW20S-12 self-cleaning pre-filter is designed as the first line of protection for domestic water installations. Its reusable 40 µm filtration system helps retain sand, rust, sludge, and other particles present in the network, protecting sanitary equipment and appliances without the need for disposable cartridges.

Design
Compact format for installation in homes and apartments. Integrates a pressure control gauge and drainage system to facilitate periodic maintenance.

Materials
Made with a lead-free copper alloy body and 316 stainless steel filter mesh, materials suitable for greater resistance to pressure, corrosion, and continuous use.

Technology
The reverse flushing system allows for cleaning the mesh without disassembling the pre-filter. By turning the drainage valve, the flow helps to easily expel accumulated impurities.

Installation
Includes 2 male ¾" union connectors to facilitate connection to the main water supply of the home.

Recommended use
Designed to protect domestic installations, heaters, washing machines, dishwashers, faucets, and other equipment connected to the water network. It is recommended to perform the flushing every 15 to 30 days, depending on the water quality.

Main features

Brand Midea
Reference QZBW20S-12
Type Self-cleaning pre-filter for home
Finish Copper
Material Lead-free copper alloy and 316 stainless steel
System or cartridge Reusable 40 µm filtration without replaceable cartridge
Connections 2 male ¾" union connectors
Benefit Retains sand, rust, sludge, and network impurities
Benefit Reverse flushing without disassembly
Benefit Flow rate of up to 3 t/h or 50 l/min
Benefit Integrated pressure gauge for pressure control

FAQ

Does it require replaceable cartridges?
No. The Midea MI0039 uses a reusable mesh made of 316 stainless steel, so it does not require disposable cartridges.

How often should it be cleaned?
It is recommended to perform the flushing every 15 to 30 days, depending on the quality of the network water and the level of sediments.

Is it compatible with household appliances?
Yes. It is suitable for protecting heaters, washing machines, dishwashers, faucets, and other equipment connected to the water installation.

Can it be cleaned without disassembling it?
Yes. Its reverse flushing system allows impurities to be removed by turning the drainage valve, without disassembling the pre-filter.

Trust Nousitan

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Official invoice
National warranty
Specialized technical support for self-cleaning pre-filters