TST 507 cap o rings

[bob213]

I thought I had more o rings when I replaced my batteries but I don't. Does anyone know the size I need to replace them. Hard to spend $16.50 with shipping just to get the o rings.
I thought I had at least one so I could take it to the hardware store to match up. Any help would be appreciated.

Someone told me 11mmx1mm. Can anyone verify that?

[bob213]

Whiskey River wrote:
Yes... #30 O-Ring They are 7/8"OD x 3/4"ID x 1/16" Cheap at Lowes or Home Depot for a box of 8 or 10.....

Those seem to be about the size of ones I used when I had flo thru. The regular caps I have now are less than 1/2 inch od.
Thank you anyways.
I think I will try the 11mmx1mm.

[Whiskey_River]

Yes... #30 O-Ring They are 7/8"OD x 3/4"ID x 1/16" Cheap at Lowes or Home Depot for a box of 8 or 10.....

[tarnold]

Visit harbor freight if you have one. I bought a box of O rings, all sizes, really cheap. Sure there will be some in it that will fit.

[12th_Man_Fan]

I found some at ACE Hdw that works just fine. They are a little larger than the OEM but they seal the cover just fine.

TST quoted me a ridiculous price so I found these that do the job.

[Roger10378]

My measurements came out at .9mm X 11mm o.d.. I don't think that the o.d. is that critical as they get stretched a lot.

[jkwilson]

I’ve heard #30 O-rings work. Can’t vouch for it, but got some at HD and they seem reasonable.

[BB_TX]

Call TST. They may send you some. Good customer service.