This is an accessory for GRABO suction gripsters. It is not a suction gripster on its own. More surface area, more hold. The Foam Seal 400 pairs with the GRABO Suction Plate 400 to take your HIGH FLOW vacuum lifter from 150 lbs (68 kg) up to 242 lbs (110 kg) of rated capacity. At 400mm (16in x 16in) it spreads the vacuum across a much larger footprint, which is exactly what large, heavy, flat and extremely porous pavers need. Four quick-lock pins hold it to the plate and it changes over in seconds. Hardscape crews are the reason this seal exists. When the material is big enough that a 300mm suction gripper leaves you nervous, the 400 is the upgrade that makes the lift routine. Built for professionals who expect their vacuum gripsters and lifters to perform on the worst surfaces on site, not the best. Once the 400 is fitted, the standard 300mm seal stays in the bag as a spare for lighter lifter work. Product details SKU FS400 Brand GRABO Condition New