Purchased this at Lowe's a few years ago - works great for the truck, trailer, air bags and bike tires. Bring it camping with us. Use for the air bags and truck tires. If I am at a place for a few days I lower the pressure in the truck rear tires - from 75 lbs to 60 lbs. Reduce the pressure in the air bags to improve the ride in the truck when not towing. Air everything back up before we hit the road.
http://www.lowes.com/pd_349204-70-C2002_0__?productId=4764588&Ntt=air+compressor&pl=1¤tURL=%3FNtt%3Dair%2Bcompressor&facetInfo=
Purchased these too (rated for 100 lbs):
http://www.lowes.com/ProductDisplay?partNumber=193551-47120-SGY-KIT-F&langId=-1&storeId=10151&productId=3414330&catalogId=10051&cmRelshp=rel&rel=nofollow&cId=PDIO1
http://www.lowes.com/pd_3453-47120-SGY-AIR44_4294813345__?productId=3416528&Ns=p_product_qty_sales_dollar|1&pl=1¤tURL=%3FgoToProdList%3Dtrue%26Ns%3Dp_product_qty_sales_dollar|1&facetInfo=