User:RickLamilami99

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TW9 BH19 According which KT3 magazine, BH19 the optimum [https://www.repairmywindowsanddoors.co.uk/swanage-windowrepair/ BH19] air BH19 gap between CR5 E5 a N19 double glazed unit is 20mm, RM10 this gives you the best sound reduction and HP6 thermal BH19 efficiency.