Two totals are not comparable when their scopes differ. A line-by-line review reveals whether the same unit arrangement, components, packaging and documentation are included.
Normalize the product scope
Compare cell geometry, connected arrangement, mesh and wire details, liner coverage, connectors and end conditions on the same basis.
Compare logistics and documentation
Check packing method, estimated shipment basis, inspection records and destination documents rather than looking only at unit price.
List assumptions and exclusions
Record fill material, installation, foundations, taxes, local handling and design responsibilities that are outside each offer.