I have just been out and mesured it and it'sjust about 22cm
wide, so it would go through, even if you had to take the outlet off and refit inside. I think they are roughly all that size. As for the name it's just called submersible pump. no honest I have the leaflet in front of me! but at £20 it seems to be fine
Gaz were did you get the fittings to connect the microbore
to your hose reel and poles I cant find them on that site
Steve