This Primary Pro insulation is for 28mm  wall thickness is 19mm. 

All are protected with our unique weather & UV protective coating allowing you to cut/mitre to the required size. It's also simple to cut and insulate all isolation valves or other external fittings.

To ensure the heating pipework is fully insulated, the insulation should go through the fabric of wall, then sealed with our Bond & Seal.

28mm x 19mm (1m length) AS022