Pipe Insulation 12x25x2M

Pipe Insulation 12X25mmX2M is a 2m tube of pipe lagging, and its size code needs a quick explanation. The rest of this range lists the wall thickness first and the pipe size second.

Reading the pipe insulation 12X25mmX2M size

Read that way, this tube has a 12mm wall and fits pipe of about 25mm outside diameter. That would suit 25mm blue MDPE where it comes up into a building, or other 25mm plastic pipe. But the numbers could be read the other way round, so check before you buy. If you bring the pipe size and the job to the counter, staff can confirm it fits.

• Size code: 12 x 25mm
• Length: 2m
• Likely fit: 25mm pipe with a 12mm wall

Any pipe that runs through a cold space benefits from lagging. A water main entering a garage, utility or cellar is a common weak spot for frost. Covering it reduces the risk of a freeze and a burst.

To fit, open or slit the tube along its length and press it round the pipe. Keep the joins tight and tape them. Cover the pipe right up to where it enters the wall, as that last bit is often the coldest.

Other sizes are in our pipe insulation section.

Where to find 12x25mm pipe lagging in Glasgow

This 25mm bore lagging is collected from Plumb Parts, 555 South Street, Glasgow G14 0QX, Mon-Fri 8am-5pm or Sat-Sun 8am-1pm, or ordered online.

Specification

• Sizes: Listed as 12 x 25mm, 2m long (most likely a 12mm wall for 25mm pipe)
• Suitable for: Lagging 25mm plastic pipe, such as blue MDPE coming indoors
• Pack quantity: One 2m tube

Common Questions

What does 12X25mm mean on this lagging?

The rest of this range puts the wall first and the pipe second, so we read it as a 12mm wall for 25mm pipe. Bring the pipe size to the counter and we will check the fit with you.

Will it fit 25mm MDPE?

Read as above, yes, it is the right bore for 25mm blue MDPE where it rises out of the ground. Lag right down to ground level, as the first stretch above ground is the coldest.

Can it go on a pipe outdoors?

Pipe insulation outside needs protecting from weather and sunlight, so cover or tape it well. If the pipe can be run indoors or buried, that is better again.