Weep Vents are a cavity wall drainage solution which allows rain water to easily escape the cavity wall via a discreet aperture in the vent.  It is wide enough not to become blocked by day to day debris yet small enough to prevent access by large insects.                                       Details:                                                                       Colour: Black                                                            Material: Polypropylene                                                            Width: 9mm                                                                        Length: 100mm                                                                         Height: 65mm