3 keywords optomize for home page. Should I create page with thoses keywords or leave it like this?

[BigBlaze205]

My online store home page, Furnace Filters Canada

has 3 keywords with good ranking in google.ca

keywords: ''furnace filters canada'' rank #1 position in google.ca

keywords: ''furnace filters'' and ''furnace filter'' are on 5 or 6th position of page 1 in google.ca

Those keywords are bringing most of the traffic to our site.

To achieve this ranking, I had to use the On-Page Keyword Optimization, tool from seoMoz

Questions: It is possible for me to create a page with the URL:

https://www.furnacefilterscanada.com/Furnace-Filters

or

https://www.furnacefilterscanada.com/Furnace-Filter

Can this improve my ranking with keywords like, ''furnace filters'' and ''furnace filter''?

Is this a waist of time? If I decide to create a new page for optimization with, do I have to create one for singular and another one for plural?

Creating a new page also mean removing, '' Furnace Filter'' in the home page title, until the new pages are index, I'm afraid to loss that 5th position in Google. Should I leave the home page title like it is now, '' Furnace Filter - Furnace Filters Canada - Online Shopping Store

NOTE: we only do business in Canada, that is why Google.ca is more important to us

Thank you,

Jean Nichols

[GPJ]

The general rule is one keyword per page, but whether this is actually necessary depends on the competitive landscape. Since you're already ranking well for these terms, I don't think it would be necessary to create a separate page for furnace filters. You also have to think about what content you would put on that page and how it would be valuable to visitors.

If I were in this situation, I would focus on building links for these terms.

[BigBlaze205]

If I decide to go and create a new page to optimized ''furnace filters''

This will be the URL:

https://www.furnacefilterscanada.com/Furnace-Filters

The page title will be ''Furnace Filters''

To have the keyword in the URL and the title page, I think I might get a better ranking. What do you think?