Hose Clamp Size (I'm not a plumber!)

[ErehwoN]

I have 1" inside diameter tubing on hose barbs. The outside diameter, as best as I can tell, is 1.25" before it goes on the hose barb. What size plastic hose clamps should I get?

Thanks in advance,

Jim

 

[Biglew11]

Mcmaster carr's Plastic hose clamps are sized based the outside diameter of the hose it is going on. 1inch I'd with a 1.25 of gives an 1/8 wall thickness, sounds right. So you'll want a hose clamp that covers the 1.25 diameter. The clamps on brs are sized based on hose id.
https://www.bulkreefsupply.com/ratchet-clamp-for-tubing-1-6684828461f4e5bda1e2a33b5e0db6d3.html
Because hose comes in different wall thicknesses you need to know the hose o.d. and the smallest diameter the clamp will achieve.