Added a link to TradeTools — the one-app version of this calculator and 61 more, for HVAC, electrical, plumbing, fire protection, solar and carpentry. Nothing else changed.
Only the current version so far — new entries appear as the app ships updates.
Backflow Device Selector Tool is a tools app by Rizvan Adzhoyan with 10+ downloads (about 19 estimated). +2 installs in the last 7 days. Released Apr 7, 2026. Install growth, rank history, SDKs and ad networks.
From the store listing: “Select ASSE backflow devices by app. Hazard classification. Code compliant.”
