The space
BR5 between the two
RG42 panes is termed a [[
https://www.repairmywindowsanddoors.co.uk/pettswood-windowrepair/ BR5]] spacer. N19 This spacer separates the two panes a
BR5 great insulating glass system.
CR5 This serves like a sealant
SO30 on the RH11 space between glasses.