For both single (12-13 mm) and double (24-26 mm) plasterboard. Fitted with 5 studs for 16 mm pipes and 2 studs for 20 mm pipes. The box can be fitted with a further 2 studs for 16 or 20 mm piping as required. All studs have spring catches. With adjustable ring and plaster cover.
What kind of electrical work can you do yourself?