摘要 |
<p>The grid has an aperture which may be closed after the grid has been fitted to the gutter. A screw (4) engages a first lug (3) adjacent to a second lug (5) on the inner side of the rim of the gutter to hold a frame member (1). There are further screws (7) and lugs (6) on the frame member, together with a rubber lip (9) engaging the grid.</p> |