BROMIC 6mm/450mm SS Type 27 Pigtail LCC27 Class F X 1/4  I/F (also defined as 7/16 UNF Male). 6LCC270450FLA

Suits double bottle regulators.

What is the LCC27?

LCC27 is the acronym for the Leisure Cylinder Connection Type 27.  It is an evolution of the current portable gas appliance Type 21 connection which is commonly referred to as a POL connection

About the current POL valve

The current Type 21 or POL connection is fitted to 8.5 kg or 3.7 kg LPG leisure cylinders.   It has a handwheel operated valve, an internal thread for connecting to the appliance, a pressure relief valve, ullage filling and a dip tube