Building a siphon extension, tubing diameter?

[tnfinfan]

Anyone have a large siphon that they can name the brand and tell me what the flexible tubing inside diameter is? I want to order a siphon and the attachments I need for my project and it would be really great if they all fit together when everything arrives!

I was looking at the Hagen, the Python, and the big Al's Python knock-off but any large, 18-24" gravel cleaning tube would work.

 

[flyfishfan1966]

Home Depot PVC aisle.

 

[Brookster123]

I made one from Home Depot too, lighting aisle, flourecent tube clear sleeve, 4' x 1 1/2", easy to cut, than fittings from plumbing section and vinyl tubing, whole thing cost $10

 

[enrgizerbunny]

The one I use for my 55 has 3/4" OD 5/8" ID vinyl tubing on it. Home depot PVC aisle.