How to redirect to a page with a slash?

Question

1C-Bitrix

https://murkel.ru/blog/katalogi-schleich-2020/ - base url for the blog.
I tried to remove the Bitrix info block settings (in two places) / in ELEMENT_CODE #, it doesn’t work without a slash at the end

https://murkel.ru/blog/katalogi-schleich-2020 - gives 404, it would be better if such the page gave a 301 redirect to the base one

in the product catalog, on the contrary
https://murkel.ru/catalog/eldador-drakony-schleich - the base url
and https://murkel.ru/catalog/eldador-drakony-schleich/ - 404, you need to gave a 301 redirect to the base url

Is it possible to implement this through .htaccess ?

Tried
#Redirect to page without /
RewriteCond %{REQUEST_URI} !(.*/manager.*)
RewriteCond %{HTTP_HOST} (.*)
RewriteCond %{REQUEST_URI} /$ [NC]
RewriteRule ^(.*)(/)$ $1 [L,R=301]

But in this case, the directory handles the redirect well, but the blog does not, respectively

Answer 1

#*со страниц без слеша на слеш*
    RewriteCond %{REQUEST_URI} !\?
    RewriteCond %{REQUEST_URI} !\&
    RewriteCond %{REQUEST_URI} !\=
    RewriteCond %{REQUEST_URI} !\.
    RewriteCond %{REQUEST_URI} !\/$
    RewriteRule ^(.*[^\/])$ /$1/ [R=301,L]