20 inch x 4.5 inch Water Filter Cartridges  29 items

You are viewing our range of quality 20 inch x 4.5 inch replacement water filter cartridges. These cartridges are known in the water filter industry as 20 x 4.5 inch cartridges. They often measure 50 – 51 cms in length (just under 20 inches) and 12 cms in diameter (just under 5 inches).