Used to drain lintels, Cavity Trays, and to ventilate cavity walls
 
 
 
Has a baffled grill to help reduce the ingress of driving rain
 
 
Provides 220mm2 ventilation airflow
 
 
Can be slotted between two bricks and mortared into position. It provides an unobtrusive ventilation point for the cavity behind
 
 
The grille is sized to keep out large insects but is wide enough that it will not be blocked by debris, paint or water droplets
 
 
Replaces a single mortar joint