US$ 29.99
metals and other materials
Designed to convert vents into service terminals
Heat loss reduced due to continuous seal around trap door
3 mm outer thread diameter
Birtley CB70 Cavity Wall Standard Duty Lintel 2100 mm Underground Drainage metals and other materialsStandard duty cavity wall lintel manufactured from structural grade steel Cavity: 70 mm 85 mm Outer Leaf: 100 mm Inner Leaf: 100 mm 60 minute fire rating with 2 coat plaster finish Lack of baseplate and factory fitted expanded polystyrene insulation reduces thermal bridging Not suitable for point loads or concrete floors Loading SWL UDL Value: 20 kN
US$ 29.99
US$ 141.44
US$ 154.88
US$ 141.44