2pcs Blue Water Filter Coupling Kit Compatible with 28mm External Threaded Water Filters for Backflush Gravity Hiking Camping

Details

• Features a 28mm inner diameter on both ends, perfectly fitting 28mm threaded water filters and standard plastic water bottles. Ideal for direct drinking, backwashing, or building a gravity filtration system while camping or hiking.
• Includes 2 adapters and 10 spare silicone gaskets for a tight, reliable seal. Prevents water leakage, improves filtration efficiency, and provides ample replacements for extended outdoor trips.
• Connect your filter to a clean water bottle for easy backwashing without a bulky syringe. Pair with a threaded water bag to create a hands-free gravity filtration system for ample clean water.
• Much lighter and more compact than traditional backwash syringes. Saves space and weight in your pack, making it perfect for long-distance hiking, camping, and emergency preparedness.
• Attach the gasket and adapter to your filter's outlet, screw the other end onto a threaded water bottle, then press firmly to backwash. Clear water flow indicates a clean filter, ready for use.