HomePleatco: PRB35-IN | Unicel: C-4335 | Filbur: FC-2385 Diameter: 5" Length: 9 1/4" Top: Open Hole: 2 1/8" Bottom: Open Hole: 2 1/8" Filter Area: 35 sq ft Filbur Replacement Filter - C-4335$36.80PriceQuantityAdd to Cart