High quality all anthracite thermostatic radiator valves in durable powder coat finish Twin pack anthracite radiator valve and lockshield Provides temperature control of 7 - 32c which can give upto a 30% energy saving over a standard radiator valve 20mm radiator extension tails included Foam packaged Suits 15mm pipe size (10mm will require an additional adaptor) Available in angled, corner or straight configurations, Manufacturer: LavaTap