ZUOS 2-Pack 8" Heavy Duty Vacuum Suction Cups - 560lb Capacity For Glass, Tile & Stone

These industrial vacuum suction cups are seriously heavy-duty! Each 8-inch diameter cup can handle up to 560 pounds maximum, with a comfortable working range of 140-560 pounds depending on your surface and setup. The extra strength rubber pad creates an incredible seal on smooth surfaces like glass, tile, granite, and flooring materials. What's really smart is the check valve system - it lets you repump to maintain vacuum without losing what you've already established. The release valve lever gives you quick, complete release when you're done, and the red-line indicator warns you immediately if vacuum starts to drop during lifting. The environmental rubber material passes ROHS testing and works in temperatures from -20°C to 60°C, maintaining vacuum for up to 4 hours reliably. These are perfect for contractors, glaziers, stone installers, or DIY enthusiasts handling large panes of glass, countertops, bathtubs, or other heavy smooth-surface materials. The 2-pack means you can use them individually or as a pair for even larger items. The curved surface design works particularly well on arched or rounded surfaces like auto windshields or curved glass, though they handle flat surfaces equally well with proper technique. Much safer than trying to manhandle heavy glass or stone alone, and way more secure than basic suction cups from the hardware store. Whether you're replacing a large window, installing a glass shower door, moving stone countertops, or any heavy lifting task involving smooth surfaces, these professional-grade suction cups give you the grip and confidence to handle valuable materials safely and efficiently.