Everyone has already been so helpful. So I purchased a Red Sea 350 that already has part #42221 (16mm) connected to the soft tubing. I want to keep everything as is. The issue I have been having is connecting my VarioS 6 return pump to the soft tubing. I ordered another part #42221 but it is...
Had some vinyl 3/4”ID tubing laying around at the house- plumbing 2 returns. Is there any problem with quality of me heating the tube to install into a 1 inch barb in the long run of it wearing and breaking off ??? Just want to make sure it’s durable and don’t snap off by the 1”barb stretch...