The BeFree replacement filter is the correct replacement part for the BioClean outdoor water purification system.

The EZ-Clean Membrane™ filter cartridge from Katadyn is a compact hollow-fiber filter for compatible BeFree systems. It is designed for mechanical filtration of outdoor water and reduces sediment, particles, bacteria, and cysts. Viruses are not reliably retained by the mechanical filter.

When combined with BioClean, it creates a practical system for on-the-go use: The BeFree filter mechanically reduces solids and certain microbiological contaminants, while BioClean—a registered chlorine dioxide solution—is added directly to the water for additional purification.

The replacement filter is ideal for anyone who already uses a BioClean + BeFree outdoor set and wants to replace the filter when flow rate decreases or after intensive use.

- for outdoor activities and hiking
- for camping and van life
- for travel and motorcycle tours
- as a replacement part for compatible BeFree systems
- for mechanical filtration of outdoor water

The lifespan of a water filter depends heavily on the quality of the source water. The more suspended solids, sediments, or fine particles present in the water, the faster the filter can become clogged.

A replacement filter ensures that the BeFree system remains ready for use even when you’re on the go—especially on longer trips, tours, or with regular use.

- Filter type: Hollow fiber filter / EZ-Clean Membrane™
- Pore size: 0.1 microns
- Flow rate: up to approx. 2 liters per minute
- Service life: up to approx. 1,000 liters, depending on water quality
- Compatibility: for compatible Katadyn BeFree systems
- Package contents: 1 replacement filter / filter cartridge

The BeFree filter is designed for mechanical filtration. For the BioClean Outdoor System, first fill the BeFree bottle with water. Then add 3 drops of BioClean directly to the water. Next, screw on the lid with the integrated BeFree filter and activated carbon filter. After the recommended contact time of approximately 30 minutes, the water can be drunk directly from the bottle.

- Treating
water on the go without affecting the taste - Treating
water from streams, springs, or lakes - Treating
water on motorcycle tours - Water hygiene while traveling and abroad
- Treating
fresh water in a camper - Outdoor & Water Treatment

BioClean is a chlorine dioxide solution registered as a biocide. Use biocidal products with caution. Always read the label and product information before use.

We ship to customers in Switzerland and the Principality of Liechtenstein.

MYCHEM.CH’s shipping and payment terms are described in detail during the ordering process. Special shipping methods requested by our customers are subject to a surcharge in accordance with local rates.

Ordered items are shipped as quickly as possible, subject to availability. More specific delivery times are displayed for each item and at the end of the ordering process.

If an item is unavailable, we will notify the customer immediately. If failure to meet a delivery or performance deadline is due to force majeure, unforeseeable obstacles, or other circumstances beyond our control, the deadline will be extended appropriately. If the inability to deliver is due to the manufacturer’s or our supplier’s failure to fulfill their obligations, both we and the buyer may withdraw from the contract provided that the agreed-upon delivery date has been exceeded by more than 3 weeks.

Shipping Costs/Free Shipping
Shipping costs are calculated based on weight and shipping method and are listed separately during the ordering process.

For orders with a net merchandise value of CHF 100.00 or more, shipping via “PostPack Priority” or A-Post is free of charge.

General Notes: No shipping costs apply
for in-person pickup.

Special deliveries by arrangement.

Packaging
Costs: The costs of standard factory packaging are included in the price. If special packaging is requested or is necessary for the safe shipment of an item, the corresponding costs will be billed.

Delivery Area
Our items can only be delivered within Switzerland and Liechtenstein.

International deliveries for larger quantities are subject to separate agreement.