Hello! Been a bit busy lately. I've acquired a laser cutter/engraver. It is very cool and water cooled. Sadly the manufacture seems to have picked 1/4" OD tubing and fittings. Over all very, very primitive. Pump is stuck in the bottom of a 6 gallon bucket. Feh. I'd like to change that; however the smallest I diameter I can find for everything seems to be 1/4" ID tubing. Sadness. For a basic mod, I'd like to add a visual flow meter inline, just to make sure the water is flowing. Later, I'd like to build a little box (okay, mini-PC sized) that would capture inbound and outbound readings for water temp and flow rate. Can anyone point me to a source for 1/4" OD water cooling stuff? Or even a 1/4" OD to 1/4" ID adapter? I have spent a couple of days looking without any luck. Course now that that I've asked for help, I'm likely to find everything I need this weekend! Once I do get this built, I'll be sure to post pictures. Thanks in advance for any assistance or advice you can offer. AT Mosby P.S. I'm in the US, but I don't mind mail ordering stuff.