York 025-42730-000 Reversing Valve L99H008 High Accuracy: Features professional-grade differential
Baker’s notes & crumb story
Description
York 025 42730 000 Reversing Valve L99H008 High Accuracy: Features professional grade differential High Accuracy: Features professional grade differential pressure sensing with + 0 No Neutral Required: Simplifies installation in older electrical boxes where a neutral wire may not be present