Sliding Glass Door Rollers

Attached are some three pictures (front, right and top) with dimensions of an existing tandem roller I took off my sliding glass patio door.  Could you please let me know which item you recommend for a replacement?  I will need two.  If there is a question of quality, I would certainly choose a higher quality roller over price, I plan no living here a long time and the door sees frequent usage.  Many thanks. I am the homeowner fixing it myself. 

Thanks, I'll try it.  If you don't hear from me in a week it fit.

Worked.  Thanks.