Space Saving Jug Filter Suitable for Fridge Door works as a water purifier. Usha Brita manufactures Space Saving Jug Filter Suitable for Fridge Door. Usha Brita supplies Storage Purifier, UV Purifier, and RO Purifier. Space Saving Jug Filter Suitable for Fridge Door comes under the brand name of Space Saver. The space saving design of this Filter is very useful for fridge door. The volume range of this Purifier makes it convenient for families, offices, hotel rooms. The manual cartridge indicates the time to change the cartridge after 4 weeks. The Volume ranges from1.5L filtered water capacity to 2.9L total capacity.