ESR Heat Alarm - 2 Units Square Line Guttering pilot hole size 6mm except

pilot hole size 6mm except for concrete where 6

Clip for downpipe available in black

it protects all central heating systems by removing practically 100% of suspended black iron oxide

Black Coloured Outlets· Top Material: Refined Hardened Scratch-Resistant PVC Plastic· Warranty: 12 Months Uk Warranty – Lifetime parts & repair service· Installation Hole Size: 82-88mm Diameter [82mm for best fit]· Space required below surface: 280mm from top of surface

White Face· Top Material: Refined Hardened Scratch-Resistant PVC Plastic· · Installation Hole Size: 100-102mm Diameter [102mm for best fit]· Space required below surface: 330mm from top of surface

ESR Heat Alarm - 2 Units Square Line Guttering pilot hole size 6mm exceptInterconnectable Up To 20 Units Battery Included Hush Feature 220 24OV HARD WIRED FIXED TEMPERATURE TYPE WITH 9V BATTERY BACK UP