Platypus DayCap Replacement Cartridge for Water Bottle Filtration | Fast 1 L/min Flow

Turn Your Favorite Bottle into a Fast, Filtered Hydration Companion

The Platypus DayCap replacement cartridge is engineered to work with the DayCap filtration system, letting you turn many popular wide-mouth bottles into a rapid, on‑the‑go water filter. It’s designed for everyday adventures, commutes, and travel where quick access to filtered water matters. With a lightweight build and a simple swap, you can keep your bottle ready for clean, refreshing water on demand.

Performance starts with a brisk flow. The DayCap cartridge delivers up to 1 liter per minute, so you can refill and sip without delays. The exterior is built from durable TPE, offering lasting resilience, while a semi‑flexible carry loop provides a secure attach point for a carabiner or strap—perfect for backpacks, belts, or packs on the move. This combination of speed and rugged design helps you stay hydrated with minimal fuss, whether you’re navigating urban streets or venturing into the backcountry.

The filtration technology mirrors Platypus’s field‑proven hollow fiber systems. The cartridge is rated for up to 1,000 liters, giving you years of filtration depending on how you use it. In testing, the cartridge aligns with NSF and EPA P231 protocols, demonstrating the removal of 99.9999% of bacteria and 99.9% of protozoa, while also filtering out sand, sediment, and microplastics. These figures are provided to help you understand the level of filtration performance under standard test conditions and are not a guarantee for any particular outcome in every situation.

Durability and maintenance are straightforward. The cartridge is designed for easy integrity checks after cold nights, freezing, or accidental drops, so you can verify continued function without guesswork. And because it’s made in the USA, you can feel confident about manufacturing standards and supply chain transparency.

Real-Life Scenarios You’ll Recognize

From weekend camping trips to daily commutes, the DayCap cartridge fits a wide range of bottles without forcing you to change your hydration habits. It’s ideal for outdoor fans who want fast access to filtered water, travelers who prefer carrying one bottle, and anyone who values a quick, reliable filtration option on the go.

• Replacement cartridge for the Platypus DayCap water filtration system
• Filter rated for up to 1,000 liters, delivering years of filtration before replacement
• Independent testing under NSF and EPA P231, removing bacteria, protozoa, sediment, and microplastics
• Easy integrity checks after freezing or drops to confirm continued safe function
• Made in the USA

What You Get in a Replacement Cartridge

• One DayCap replacement cartridge
• Simple guidance for replacement cadence and use
• Compatibility with widely used wide-mouth bottles