1L Collapsible Water Filter Bags and Water Filter Coupling Kit Compatible with 28mm External Threaded Filters, Foldable Backpacking Bottle for Traveling, Hiking, Camping - 4 × 33.8oz

Our Water Filter Coupling & Collapsible Water Bag Kit includes 4×1L collapsible water bags, 2×28mm filter couplings, and 4×gasket seals. The couplings create a leak proof connection between collapsible water pouches and 28mm threaded water filters, supporting direct drinking, gravity filtration, and easy backflushing—no bulky syringes required. Lightweight and packable, this kit offers a reliable portable water solution for hiking, camping, backpacking, and travel. Durable, reusable, and space saving—perfect for any outdoor adventure! Features: 1. Leak proof couplings with gasket seals ensure tight fit for clean, efficient water filtration. 2. Collapsible water bags fold flat to save space, ultra light for travel. 3. Supports direct drinking, gravity filtration, and easy backflushing of filters. 4. Ideal for hiking, camping, backpacking, emergency kits. 5. High quality plastic materials—safe and durable for outdoor use. Specifications: Water Bag Capacity: 1L (33.8oz), Collapsible Coupling Compatibility: 28mm thread filters & bottles Gasket Seals: Included (4 pcs spare) Material: Plastic Color: Clear (Bag), Blue (Coupling) Package Content: 4× 1L Collapsible Water Bag 2× Water Filter Coupling 4× Replacement Spare Gaskets

• [Complete Water Filtration Kit for Outdoor Use] This set includes 4×1L water filter bags, 2×water filter couplings and 4×replacement gaskets, compatible with 28mm threaded water filters. It provides an all in one portable water solution for hiking, camping, backpacking, and travel, allowing you to carry, filter, and store clean water with ease
• [Reliable Filter Coupling with Gasket Seals] The included Water Filter Couplings with gasket seals provide a tight, leak proof connection between water filters and the collapsible water bags. This eliminates the need for bulky syringes when backflushing the filter, making cleaning faster and more efficient. Also great for setting up gravity filtration systems, freeing your hands while ensuring a continuous flow of clean water
• [Collapsible & Lightweight Water Filter Bags] Each 1L foldable water bag is made of durable, plastic material, lightweight yet tough enough for outdoor use. Designed to fold flat when empty, these water pouches save space in your backpack and can be easily stored. The clear design makes it easy to monitor water level and cleanliness
• [Versatile Use for Filtration & Storage] The kit allows you to connect the collapsible water bags to most 28mm thread filters for direct drinking, water collection, backflushing, or gravity filtering. Whether you're on a long distance hiking or emergency prep, this system lets you handle all your water needs quickly and efficiently
• [Designed for Hikers & Backpackers] Unlike heavy hard bottles or large filter pumps, this lightweight, compact kit is perfect for minimalist hikers, backpackers, and outdoor enthusiasts. Whether for short trips or multi day adventures, the quick connect couplings, spare gaskets, and collapsible bags ensure you're ready for any water source you encounter