The Eshopps Cliff Hanger R filter sock holder is the most innovative way to add mechanical filtration to any sump. The Cliff Hanger R incorporates a dual 1” bulkhead inlet and an up to 1.25” wide adjustable sliding clamp mount with easy-access, top-mounted thumb screws. Its design features a quiet spill over filter sock cradle with safety overflow slots and clear side viewing panels. Includes (1) 4”x 7 micron rectangular filter sock. Features Spill over method filter sock cradle with clear side panels. Up 1.25” wide adjustable sliding clamp mount. Built in safety overflow slots. Compatible with Eshopps Rectangular Filter Sock and Eshopps Bio Cup R Rectangular Filter Media Cup Quiet performance Specifications Dimensions: 7.5” x 8” x 6” Recommended Tank Size: 60-150 Gallons Recommended Flow: Up to 750 GPH Max Tank/Sump Wall Thickness: 1.25” Bulkhead Size: 1” (x2) What's Included? 1x Cliff Hanger R filter sock holder 1x 4 inch 700 micron rectangular filter sock