50 x Buff Weep Vents Round Vent Cavity, Retaining Wall, Rendered Walls

50 x Buff Drill Weep Vents Round Vent system Cavity Retaining Walls Wall

Amtech F4250 16mm x 400mm Masonry Drill bit

10 x White Drill Weep Vents Round Vent Cavity, Retaining Wall, Rendered Walls