I went to the campground to get my propane tank filled. I had heard they did that. It took under 5 minutes and the owner was very very nice! Customer service, you gotta love it! Price was great! He gave me a little insight. Those tanks for grills are 20 lbs but they only have 15 lbs in the places you swap your tank at. He fills them to 20 lbs! Go fill your tanks at Parnells folks!