Platypus GravityWorks Replacement Water Reservoir Kit 4.0 L – Clean & Dirty Reservoirs (USA Made)

The Platypus GravityWorks Replacement Water Reservoir Kit 4.0 L keeps your filtration setup fresh and flexible on the trail. Replace worn reservoirs or scale capacity to match your group and pace.

Two reservoirs: Clean and Dirty, are included with quick-disconnect fittings for fast, fuss-free swapping, even when you're moving between tasks. The dual-layer laminate blends a rugged exterior with a taste-free interior, helping preserve the water flavor as you carry it from source to bottle.

Key specs and materials

• Replaces worn or damaged GravityWorks reservoirs or expands an existing system
• Includes Dirty and Clean reservoirs with quick-disconnect fittings
• Dual-layer laminate: rugged exterior, taste-free interior
• Compact footprint: 15 x 8 inches; about 6 oz
• Limited lifetime warranty; proudly made in the USA

Fit, use, and versatility

The 4.0 L kit is part of a trio of sizes (6.0 L, 4.0 L, 2.0 L) that let you scale for group size or trip length. The lightweight design supports day hikes and longer treks alike, while the quick-disconnect fittings keep your setup flowing smoothly from source to storage.

• Swap damaged reservoirs without replacing the entire GravityWorks system
• Size options let you match capacity to your plans
• Preserves water flavor thanks to a taste-free interior
• Lightweight, durable, USA-made with a limited lifetime warranty

Whether you're upgrading an existing kit or building a backup for challenging itineraries, this replacement reservoir kit offers a practical, reliable upgrade that respects your pace and environment.