This Whirlpool WHKF-WHPLBB large capacity whole house filter is made of polypropylene and removes sediment. It is compatible with WHKF-WHPLBB model, suitable for under-sink and whole home use. The replacement filter has a filtration method of whole house filter and a 30-micron rating. Each pack includes 1 cartridge with a 3-month lifespan. The item measures 10 inches in height and 4.5 inches in width, weighing 12 ounces. Free shipping is included.