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sealed-for-life lithium battery powers the alarm for its entire 10-year service life without any battery replacement
Serial number prefix (PEN fault version): ZGBxxxxxx
EPS Blackout Backup Optional emergency power supply (EPS) delivers power to a dedicated circuit within milliseconds of a grid failure
high-performance hot water solutions
backed by a 30-year linear power warranty
Drayton TRV4 Classic 15mm White Chrome Angled TRV Lockshield Valve Pack 07 05 180 15mm Angled sealed-for-life lithium battery powers theThe Drayton TRV4 Classic 15mm Angled TRV & Lockshield Valve Pack (MPN 07 05 180) is the go to complete valve pair for standard 15mm domestic radiator installations supplying both a TELL Class I rated TRV4 angled thermostatic radiator valve with integral head and a matching chrome angled lockshield valve in a single box. Both valves share the TRV4 Classic white and chrome finish, ensuring a co ordinated appearance. The TRV body includes reverse flow
