"These folks sell gas grill accessories. I got the GasWatch unit that tells you how much gas in still in your tank and also is a safety shutoff in case of a big leak.

About 4 months after I purchased the unit a piece broke off as I was installing it on a new tank. I contacted them and they told me to send them the unit for a free replacement.

I sent them the unit and they sent back a new and improved unit within two weeks.

Nice doing business with them and the units are real nice about letting you know if you need to change a tank BEFORE you start cooking.
"