Details
25mm Hose Tail Connector can be used on PVC pipe. Hose Tails can connect PVC pipe to flexible pipe, such as the eheim flexible pipe.
Other 25mm Pipe and Fittings you may need can be found here:
25mm Hose Tail Connector can be used on PVC pipe. Hose Tails can connect PVC pipe to flexible pipe, such as the eheim flexible pipe.