Sanke Coupler for sixth barrel question

[eager_brewer]

Everyone, I have found a place where I can get the 1/6 barrel kegs for free so I just need the Sanke coupler for them. I thought the were all the same but I saw 2 this weekend. 1 the locking handle would lower no problem. The othe was for the larger 1/4 kegs and the handle was too long to lock down. How can I be sure the tap I order online will fit my 1/6 barrel?
Thank you!
Tom

 

[buzzkill]

http://www.kegworld.com/keg-valve.htm

 

[eager_brewer]

thank you. I know Ihave a D fitting. I need a short lock handle and low and behold they are called "Short handles" I found a bunch of them, and they are designed for these smaller kegs.