BWT MU TRIO Whole House Three Stage Water Filter System, 3/4" NPT Connection

Product Overview

The BWT MU TRIO Whole House Water Filter System 125693486.NA is a premium 3-stage whole-home water filtration system designed for North American residential plumbing systems. Built for point-of-entry filtration, the MU TRIO helps reduce sediment, sand, rust, chlorine, taste, odor, and suspended particles before water reaches fixtures, appliances, water softeners, and drinking water systems.

This North American version is configured under SKU 125693486.NA and includes compatible fittings for North American plumbing installations. The system is based on the BWT MU TRIO platform and is designed for homes, cottages, rural properties, municipal water supplies, water dispenser pretreatment, and water softener protection.

The MU TRIO comes pre-configured with three filtration stages: a washable 50 µm polyamide cartridge, a 20 µm string wound sediment cartridge, and a granular activated carbon cartridge. Together, these stages help improve water clarity, reduce common particulates, and improve taste and odor throughout the home.

Key Features & Benefits

• Complete 3-stage whole-house water filtration system
• North American version includes compatible plumbing fittings
• Reduces sediment, sand, rust, suspended particles, chlorine, taste, and odor
• Includes 50 µm washable polyamide, 20 µm sediment, and GAC carbon cartridges
• Ideal pretreatment for water softeners, water dispensers, and point-of-use filters
• Transparent housings allow visual inspection of filter condition
• Opaque activated carbon housing helps protect carbon media from light exposure
• Built-in service calendar helps simplify maintenance scheduling
• Durable PET housings provide impact resistance and long-term reliability
• Designed for lower pressure drop and strong flow performance
• Suitable for municipal, rural, cottage, and private water systems
• Made in Italy

Why Choose the BWT MU TRIO 125693486.NA

The BWT MU TRIO is designed for homeowners who want more than a basic sediment filter. By combining staged sediment filtration with activated carbon filtration, it provides a broader approach to whole-home water quality. This makes it especially useful before water softeners, dispensers, point-of-use drinking water systems, and other downstream equipment.

The system is built around BWT’s MU filter housing design, which uses enlarged flow openings and a star-shaped head layout to help maintain strong water flow with reduced pressure drop. The PET bowls are durable, lightweight, chemically resistant, and recyclable, making the MU TRIO a practical and reliable option for long-term residential filtration.

Included Filter Cartridges

• Stage 1: 50 µm washable SOE polyamide filter cartridge (125693489)
• Stage 2: 20 µm SOE string wound sediment cartridge (125693631)
• Stage 3: SOE granular activated carbon cartridge (125693632)

Product Specifications

Installation Tips

• Install on the main incoming cold water line before downstream equipment.
• Use as pretreatment before water softeners, dispensers, and point-of-use drinking water systems.
• Ensure adequate clearance below each housing for cartridge removal and replacement.
• Flush cartridges thoroughly during startup before normal use.
• Install in a frost-free indoor environment away from excessive heat.
• Monitor water pressure and cartridge condition regularly.
• Use the built-in service calendar to help track maintenance intervals.

Orders over $120.00 have free delivery, unless otherwise stated in the checkout. Delivery will be made within 3 - 4 business days after sending the order confirmation.

We want you to be completely satisfied with the purchase of your BWT product. If you are not, we will refund the full purchase price.

Please use the contact form to let us know the reason for your dissatisfaction and your contact details. We will then inform you as quickly as possible about the further process and how you can return your product to us free of charge.