I use Fil Tec pre-wounds on my Janomes.
Part # 13305
15 class A
CLEAR GLUIDE

I buy black and white

Our WalMart carries them.

Bobbin Guide: https://vw-superiorthreads.storage.g...ility-list.pdf

If everyone would follow the suggested sites and do a little searching on the sties, great info can be found.

Superior Threads is such a great American company! Easy to order from and very customer oriented. Plus, they offer so much free information and advice about thread and bobbins on their website that it is my go-to site for any thing I need to research.

I always get mine from eBay and have never had a problem with them. Just be sure you're ordering the correct type/size bobbin.

This is what the sticker on my tube says. Only it says 13319 Light Grey

Where do you get yours?

I love them.I use them all the time in both my machines.
Never have a problem.

I buy mine from smartneedle.com. You get 144 for $38 it comes to about 26 cents each. They have 2 sizes and list which machine uses which size. I have a brother Dream Machine and have had no problems with the bobbins. The bobbins are not reusable but who cares they are way cheaper than winding my own.

My Janome uses size L prewounds and my Babylock and Brother use size 15. I don't use anything but prewounds unless I need a special color. All your sewing suppliers on line sell them, but I got mine from Amazon.

Rennie -- my Janomes all usethe Class 15 or A bobbin. The L's are just a little shorter -- the 1600p is the only Janome that uses the L. The Innovas use the M.

I use prewound bobbins most of the time for piecing </SPAN>-- I just make sure to get the 15/A's. I have heard of some Janome owners using the L's with the magic genie washers, but I have not tried it. I usually wind my own bobbins when machine quilting since I like the thread to match if it pulls up. </SPAN>