Cast aluminium and 17.5mm at the barb.
![[Linked Image]](https://i.ibb.co/QvyCWjjL/Screenshot-20251117-191524-Ali-Express.jpg)
![[Linked Image]](https://i.ibb.co/RG9VbS4T/Screenshot-20251117-191454-Ali-Express.jpg)
Worth a try for £4.83 delivered.
Wow, that really is a bargain, compared to the one in my previous post which at £25 must be made of unobtainium.....
![[Linked Image]](https://www.tm-img.com/images/2025/11/17/18mm-alloy-3-piece.png)

Yeah, I'm not paying £25 for a simple T-Piece

A fiver seemed like the right money to me, and being cast aluminium it should prove reliable, here's a link to the listing:
https://www.aliexpress.com/item/400...er_list.order_list_main.4.15c31802Py20c5Also, the way I see it the expensive TiGed up version is only as good as its weld, while the substantially cheaper cast one has no welds to leak or fail
