Needed help with overflow

[Lonely reefer's]

Hello reefers
I needed help I'm thinking of pick up 50g
29x20x20
2" drain
1.25" return
Please help me what type of overflow do I needed and where can I get them
Look like the 2 pre drill hole so close to each other
Thanks in advance

 

[djd3mon]

http://glass-holes.com/Overflow-Kits_c3.htm

they have some good kits and have pretty reviews.

When its time to do my tank that's who I'm going with.

Good luck!