Instruction: Analyze a question and its supporting document. Predicting answerability based on the information provided in the document. Output yes if the document contains relevant information to answer the question, otherwise output no.

Input:
Question: Is this 20 oz or 12 oz?
Document: It's a good product that does what it was made for by a good company. Not really much more to say other than you can't go wrong with it for a 20 ounce tank, especially for the $18 shipped I paid. 20 oz.tanks are $35 here in Alaska, so yeah...
The tank was new, had a recent DOT manufacture date, was made in asia and the pin valve leaked. Not happy with the Guerrilla Tank and had to returned to Amazon. Ordered a made in USA, "Nija" 20 oz tank for the same money, very happy with the Ninja tank.
this was exactly what I needed for my sodastream machine since a 14.5 oz replacement from Sodastream will cost about $15.00. This cost me  $22.00 at Amazon and I had it filled at Dick's sporting goods.for $4.00 for 200z CO2. You have to buy the adapter from Amazon($17.00) which also worked perfectly. So I spent $39.00 for the tank and adapter.
just received the co2 paintball tank and have yet filled it. it came in the time frame stated. there a couple things that I am unhappy with. (1) the tank's hydo-test is out of date by well over a year. and (2) the upper lip is damaged. I hope that this doesn't cause a leak when connected to my gun. if it doesn't leak, will upgrade to three star rating.
best co2 tank youre gonna get for this price arives in a timely manner, and is good to go man best co2 tank I ever bought.
The air tank was in great shape and arrived in less time than estimated. Filled it, used it and still lovin it.
Pin valve failed and leaked after 1st use. Will return to amazon. Very disappointing (and very dangerous). Do not buy
Pin failed on first fill-up. Lucky I filled it within 30 days cuz that's all the warranty you get. Returned for credit.
I have 2 of these. One 2 months old and another over a year old.No leaks. No problems.Works great. Sweet price.I will buy more when the time comes.
Guerrilla Air 20oz CO2 Complete Paintball Tank no issues with the product seller or the packaging. Not to heavy for adults. Not for the little warriors
Answer: yes