With the JBL Double stopcock it is quick and easy to remove filters or pumps from the water circuit without draining the whole system. The two stopcocks can be separated in the middle to prevent emptying..
- Liviu Emanuel S. wrote about JBL Double stopcock with quick coupling in 2020:
The product does exactly what it should do. I really recommend it.
- Sebas M. wrote about JBL Double stopcock with quick coupling in 2020:
Can this be used to control/reduce the flow from filter outlet?
Aquaristikshop.com: Yes of course. The taps can also be used to separate the filter from the hosing.