what size hose clamps for thermoplastic tubing?

[robumba]

Somehow over the yrs I've lost a bunch of hose clamps!
I'm looking to buy some on amazon but not sure what size to get.
Purpose is to attach 1/2" thermoplastic tubing (I believe outside diameter is 3/4") to a March pump and hose barbs on boil kettles.

Any help is appreciated!

 

[Broken Crow]

They're way cheaper on Aliexpress, but the wait time is longer. 'thermoplastic tubing' is a really general term and various manufacturers have differing Outside Diameters for the same OD the tube is sold at. Take a caliper or micrometer or some jury-rigged device and measure the exact outer diameter of your specific tubing and order based on that... otherwise you'll get half a dozen folk on here tell you what size works for them, and their tubing may be entirely different from yours.

 

[robumba]

thanks!

 

[oakbarn]

worm clamps:
https://www.aftfasteners.com/hose-clamp-size-chart
One you have the size, you can find what size clamp you need.


I prefer stepless clamps.

https://www.amazon.com/dp/B09MQ9FX32?psc=1&ref=ppx_yo2ov_dt_b_product_details