The ESHOPPS Cliff Hanger 4” and R Filter Sock holder is the most innovative way to add mechanical filtration to any sump. Cliff Hanger incorporates a 1” (single for 4” & dual for R) bulkhead inlet, and up to 1.25” wide adjustable sliding clamp mount with easy access top mounted thumb screws. Featuring a quiet spill over method filter sock cradle with safety overflow slots with clear side viewing panels. Cliff Hanger 4” includes (1) 4”x 200 and R includes 4”x 7 micron filter sock.