CPR Aquatic Sock-Its Sock Filter Add On KitSock Its SOCK IT PRE FILTERS Easily add a filter sock to most any sump. (vertical or euro braced tanks) Tinted body and adjustable bracket height. Adjustable length inlet too reduce noise and splashing. Inlet connects to standard 1" fittings, pipe and hose. Fits onto vertical rims less than 1. 25" thick and euro bracing less than 0. 50" thick and 2" wide. Comes in 2 sizes with 200 micron pre filter sock 4" Holder Dimensions (L x W x H): 4. 75" x 4.