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Tower DB166LSF 1 + 1-Gang Galvanised Steel  Knockout Back Box 35mm

British General  1 + 1-Gang Galvanised Steel  Back Box 35mm

Buy Grey 1 + 1 Gang Back Boxes at Screwfix.com. Free next day delivery available. Pay your way. PayPal accepted online. Apple Pay accepted in store. Over 70,000 products. Delivery 7 days a week

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Tower DB166LSF 1 + 1-Gang Galvanised Steel Knockout Back Box 35mm (500AW)

British General 1 + 1-Gang Galvanised Steel Back Box 35mm (873XG)