For use with Roof Tube CLASSIC! Easily purchase all of the available tips. Give your crews a chance to experiment with every possible combination to find the right combination for roof restoration project. Just like everything the roof tube will take a little experimentation to find the exact right combination. Remember the large tips are for those heavy seam grade and trowel grade mastics. The smaller tips are better for runnier less viscous products like fastener grades, rust primers, Base and top coat application. Roof On Brothas!!