Which commercial gas deep fryer should you choose for your restaurants? Most restaurant and shop owners buy 45lb floor model gas fryers such as the American Range AF-45 or Tri Star TSF-4050. Pitco is also a very popular brand in this style of fryer. These versatile fryers hold between 35 and 50 lbs of oil and have a rock solid track record for reliability. Because this size is the most popular, the manufacturers build the most of them, and therefore the price is the most competitive. Some restaurant operators move up to the 75lb gas fryers for more volume, while others, such as chain restaurants like McDonalds, Fridays, or Bennigans move to systems with built in filtration. You will find prices go up fast for fryers with filtration and batteries.