I have a Challenger VI keg that has a leaky gas valve. I have been pricing poppets on all the normal sites. My question is: Is there a difference in the Gas Poppet Valve and the Liquid Poppet Valve? I know there is a definite diference in the Posts but cant seem to find a different poppet valve for each. I would like to buy new poppets for all my kegs but before I order and dont get it right I thought I would ask. Thanks for the help.