The 42 mm Filter Cap from Hydrapak is a practical accessory for water bottles, specifically designed for models with a 42 mm screw cap. This filter attachment allows users to filter water from various sources and drink safely, making it ideal for outdoor activities, travel, or everyday use. The filter is lightweight and easy to handle, allowing it to be easily screwed onto the compatible bottles. With this product, users can ensure they have access to clean drinking water at all times without compromising on quality. The filter is made from durable plastic and provides a reliable solution for water purification.

• Compatible with Hydrapak bottles with a 42 mm screw cap
• Effective water filtration for safe drinking
• Lightweight and compact design for easy use.