Isaac  
I was going to create a new GTM for this client. However, after consulting with Shane, we are going to use the one on the other site. 
Here is the code. Please add it to the https://sculpt.ritaccalasercenter.com site. 
Thanks. 

<!-- Google Tag Manager -->
<script>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
})(window,document,'script','dataLayer','GTM-5KTXSL4');</script>
<!-- End Google Tag Manager -->
<!-- Google Tag Manager (noscript) -->
<noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-5KTXSL4"
height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>
<!-- End Google Tag Manager (noscript) -->

Also, please add the Google analytics tag as well. 

<!-- Global site tag (gtag.js) - Google Analytics -->
<script async src="https://www.googletagmanager.com/gtag/js?id=UA-158730517-1"></script>
<script>
  window.dataLayer = window.dataLayer || [];
  function gtag(){dataLayer.push(arguments);}
  gtag('js', new Date());

  gtag('config', 'UA-158730517-1');
</script>

Thanks, 

Hector  - ADDED

Awesome work Isaac.
Verified all match and are there.

image.png 825 KB • Download

thank you.