Click to expand Tap to zoom RTC Grabo Foam Rubber Seal by RTC $30.75 | / SKU STGRABOSEAL 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart RTC Grabo Foam Rubber Seal This foam liner that allows you to get a vacuum seal regardless if it is smooth or rough surface. Rubber foam replacement available to ensure your Grabo makes the best seal possible when handling materials.