Choose the HRV/ERV that best suits your needsSOLACE® Series Explore Heat and Energy Recovery Ventilators Counter-flow core Recirculation defrost ECM fans PREMIER Series Explore Heat and Energy Recovery Ventilators Compact design Fan shutdown defrost ECM fans PROFILE Series Explore Energy recovery Ventilator False ceiling install Fan shutdown defrost ECM fans Mirrored options (-M products) Mechanical shut-off damper (-D products) Hard Connect Capability (-HC products)