42mm Filter Cap

The Hydrapak 42mm Filter Cap transforms any water source into safe drinking water. This lightweight, compact filtration system threads directly onto compatible bottles and hydration reservoirs, making it ideal for hiking, camping, and backcountry adventures. The replaceable filter element removes bacteria, protozoa, and sediment, delivering clean water without chemicals or batteries. Perfect for travelers and outdoor enthusiasts who refuse to compromise on hydration. Durable construction withstands rugged conditions while the intuitive design requires no assembly or maintenance skills.