This Elster J42 Gas Meter Fitting Regulator G4 U6 Domestic INSTALLATION KIT is a must-have for anyone looking to install a gas meter in their home or business. It provides all the necessary components to ensure a safe and efficient installation, including a regulator, fittings, and other building materials. This kit is perfect for those in the business, office, or industrial sector who need reliable gas meter fittings and supplies.