From memory I simply entered;

RD316 price

In the search engine.

Shd also try with a dash between the RD and 136

Cheers Bob VK2YQA

wrote:

I'm in the UK, though I'm happy to buy overseas.

I'd be interested in your google hits, as I never found an actual hits
that took me to a vendors site that said "yeah, we sell RD316 and its X
money per reel of y metres.

cheers