No filter. They are £20 currently on Ultralight Gear Website. The Clear Flow water bottle is BPA-free and very durable. The food grade silicone mouthpiece makes for convenient drinking and won't crack.
HydroBlu Clear Flow Water Bottle - No Filter
Water Dispenser Bottle Water Jug Mineral Water Barrel Clear Thickened Water
Aquamira Frontier Flow Water Bottle GRN Line Filter Bacteria Protection
