Nickel plated brass manual radiator valve made exclsuively for Castrads and finished to a high polish. Designed to complement Castrads cast iron radiators but equally elegant on steel column radiators. Half inch BSP to 15m compression. Bidirectional. Manuafactured to ISO 9001 and EN215. Five year guarantee. We recommend nickel accessories with radiators in any of our hand polished finishes or with warm and light tones.