Hello Zach,
Glad to get your message.
BPPRE-MBEMLH16-6P fits for OD16mm hard tube.
One side connects to OD16mm hard tube, the other side is G1/4" thread.
You can connect it to any one which has IG1/4" thread.
Such as water block, radiator, fitting.
Any question, feel free to contact us.
