Using puppeteers to get iframe when given the iframe id

So, I've got a bit of code in the Chrome Dev Tools like this:

<div class="ember-view" id="ember123">
    <iframe src="http://yaddayaddayadda" id="sso-frame" class="sso-iframe">
    .
    .
    other elements I will loop around and get
    .
    .
    </iframe>
</div>

I'm trying to get the iframe using Puppeteerjs. I can't use id="ember123" since ember id's dynamic. Is there some way to get the element handle via the id?