Dear Customer,
The inner diameter on "BP-CLT14-90R" is 11 mm.
You can choose our silicon tube BP-HTSB11CL-1M too.
When you log in, you can purchase.
If you have any questions, feel free to contact us.
https://shop.bitspower.com/index.php?route=product/product&path=59_125_311&product_id=2765