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British General  3-Gang Dry Lining  Box 35mm

Knightsbridge  3-Gang Galvanised Steel Unfinished Back Box 35mm 5 Pack

Buy 35 mm 3 Gang Back Boxes at Screwfix.com. Products reviewed by the trade and home improvers. 30 day money back guarantee. Free next day delivery available. Choose from top trade brands.

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British General 3-Gang Dry Lining Box 35mm (892XG)

Knightsbridge 3-Gang Galvanised Steel Unfinished Back Box 35mm 5 Pack (112YA)