This is a Pentair Pentek ECP20-BB Big Blue Sediment Water Filter designed for whole house filtration. It is 10 inches in size with a 20 Micron rating, suitable for water purification. The filter is made of polyester and is ANSI and NSF certified. It comes in a pack of 1 with product dimensions of 4.49"D x 9.8"W x 4.49"H. The brand is Pentair Industries, and it does not require batteries.
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