Air conditioning apparatus; Air filtering installations; Boilers for heating installations; Electric radiators; Faucets; Filters for drinking water; Flexible pipes being parts of basin plumbing installations; Flexible pipes being parts of shower plumbing installations; Flexible pipes being parts of sink plumbing installations; Heating installations; Lamps; Refrigerators; Regulating accessories for water or gas apparatus and pipes; Safety accessories for gas pipes, namely, flashback arrestors ...