E-StorePRO enables customers to purchase replacement parts and services from contractors over the Internet.

E-StorePRO sites include Honeywell's trade products catalog, as well as replacement parts and services. The Honeywell catalog is maintained by WebStack.

However, the E-StorePRO can also include other manufacturers' catalogs. The catalog may also include other trade products such as plumbing and electrical items.

Products and services are priced by the contractor to suit the local market conditions.

Catalogs are divided into sub-categories for ease in finding products. The sub-categories display only the specific product lines carried by the contractor.

The product listings include a thumbnail image, short name and description of each product.