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Which Cylinder for me?

Which Cylinder for me?

After reading the forum for about a month now i have decided to get a electric pump.

I was wondering if someone could advise me of the best sized cylinder i should order with my CTC XL-3000.
I am very small
4 Inches long and 4 1/2 in diameter.

On the CTC site they have cylinders that measure

1-7/8” X 10”
2-1/8” X 10”
2-3/8” X 10”
2-5/8” X 10”
2-7/8” X 10”

I have read in the pumpers forum that i should be getting a cylinder close to my size but i don’t understand the measurements on the site.

I live in Australia ( hi to all the Aussie’s out there ), We use the metric measuring system in Australia so it further confuses me.

Any help anyone can give would be much appreciated.

thanks in advance


First of all, your size is 4 inches long and 4 1/2 in circumference, not diameter.

Even the smallest diameter tube you list is too large for you. 1 7/8 X 3.14159 = 5.9 inch circumference which is quite a bit larger than you. You would have trouble keeping your testicles out of the tube.

The right size tube for you would be 1.5 inch diameter X 3.14159 = 4.7 inch circumference, which is just perfect for you to start out at.

This size tube is available at lapdist, but I don’t know if you can plumb it into your CTC pump. Here is a link to the tube sizes available at lapdist.…&Store_Code=lap

Thanks for you help

Thanks for you help Gprent - your right it’s circumference not diameter - if i was 4 1/2 inches in diameter i would not need the pump.

Originally Posted by Sourmango

I am very small

4 Inches long and 4 1/2.

About the same size as me.

I hope you make your goals.

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