Substantial Performance. The Caplans own a real estate lot, and they contract with Faithful Construction, Inc., to build a house on it for $360,000. The speci?cations list “all plumbing bowls and ?xtures . . . to be Crane brand.” The Caplans leave on vacation and during their absence Faithful is unable to buy and install Crane plumbing ?x-tures. Instead, Faithful installs Kohler brand ?xtures, an equivalent in the industry. On completion of the building contract, the Caplans inspect the work, discover the substitution, and refuse to accept the house, claiming Faithful has breached the conditions set forth in the speci?cations. Discuss fully the Caplans’ claim.