1030 IS A 1.00" X 3.00" FRACTIONAL 10 SERIES RECTANGULAR T-SLOT PROFILE WITH EIGHT OPEN T-SLOTS, ONE ON EACH 1.00€ FACE AND THREE ON EACH 3.00€ FACE. THE PROFILE HAS ALIGN-A-GROOVES TO ASSIST IN ALIGNMENT WHEN CONNECTING PROFILES. THE 1030 PROFILE IS COMPATIBLE WITH 10 SERIES FASTENERS AND HAS CENTER CAVITIES THAT CAN BE PRESSURIZED UP TO 150 PSI THE EIGHT OPEN T-SLOTS MAKE THIS PROFILE GREAT FOR MOUNTING ACCESSORIES, JOINING PLATES AND HINGES WHILE THE ABILITY TO PRESSURIZE IT LENDS IT TO PROJECTS INVOLVING LINEAR MOTION OR MACHINE FRAMES.