Manthorpe's RH/LH Block Catchment Tray is designed for applications where random stone or blockwork is specified.The GW293 BS Catchment Tray is suitable for larger coursing heights typically 150mm, 225mm in either stonework or blockwork. This tray is located at the lowest point of the abutment. Upstands at both ends of the tray ensure that the water, which runs down from the trays above, is collected and safely diverted out of the wall. The flexible perpend protector attached to the tray prevents driving rain from penetrating the outer wall and tracking across the masonry.A G950 Weep Vent must be used in conjunction with this tray to drain the collected water away. The tray has a unique front mortar clip that can be removed at any time once the mortar has set leaving a 25mm deep aperture into which the lead is inserted and secured with lead wedges. The GW293 BS Catchment Tray can be supplied with short or long lead stapled and sealed to the tray in either code 4 or code 5 (special order) lead.SpecificationColour: BlackMaterial: PolypropyleneSize Information (225mm Coursing)Length: 330mmRoof pitch: all pitchesSize Information (150mm coursing)Length: 330mmRoof pitch: all pitchesSuitable for cavity widths from 50mm to 100mmInstallationStrike a line or use a dummy truss offset 75mm from the proposed finished roof line, one tray should be placed in each course at the intersection of this line.Do not fit the trays into the nearest perp end, blockwork will need to be cut to achieve correct pitch, but will be hidden by the lead flashing.Do not dry bed the trays, lay on a thin skim of mortar.FeaturesPart of the blockwork stepped tray system.Catchment tray for bottom of run.Extended stop end for larger coursing.Removable mortar strip for lead placement.Can be supplied with lead attached