Affiliate Marketing Secrets

I have an idea I’d like to patent. Now there are three patented products involved in my idea, but my product is a combination of the three:
product one: extremely common household product
product two: uses a process to make a product similar to product one larger
product three: used only in niche businesses, too large and cumbersome for home use.
My product would use the process from product two to transform product one into product three temporarily to provide a niche product for occasional use, then back to serve the purpose of product one permanently.
according to patent law as I understand it, you can patent a product that improves an existing product or adds functionality, and my product improves all three products by adding the functionality of the others. it’s a two-in-one product created by adding a third. I’m afraid I can’t be more specific without giving too much away. Is this patentable?