Help with push fit pipe identification

[Frog67]

Evening all, currently working in a property with grey plastic push fit on the heating pipes. The fittings are plastic with a brass section where the pipe pushes in. I can remember seeing these but i cant remember what brand they are. i can only remember HEP 20 being grey but i need to extend the pipes so i need a fitting that will be compatible.
Can anyone name the brand i have described or suggest a universal fitting that will connect to any brand of push fit?
Thanks in advance

 

[Billy Bob Bob]

sounds like early hep but could be polypipe,i take it nothing written on the pipe? can you post a pic of the fittings?

 

[dancinplumba]

Buteline, check the size

 

[Frog67]

No pics as I'm not back there until Friday. Don't think its Buteline either. Pretty sure its Hep but not 100% sure. I need to cut into the pipework but unsure what to use.

 

[Ray Stafford]

The fittings are plastic with a brass section where the pipe pushes in.

Marley Equator?

 

[Frog67]

Cheers Roy, that's them. Are /were these fittings sold through Plumb center and are they still available or if not what is the equivalent.
Thanks again

 

[tamz]

Plumb center mg_smile:

 

[Scott_D]

Still available

 

[Frog67]

Thanks tamz and to all who replied