Lennox 49L04 Sight Glass 321702-401 The 360-degree mounting capability ensures

The 360-degree mounting capability ensures adaptability in confined mechanical rooms where clearance is limited

OEM York gaskets are manufactured to specific durometer and thickness tolerances that generic parts often miss

this parallel-connection trap identifies and handles varying loads without the risk of air binding

System Logic Management: Orchestrates the start-up sequence

Lennox 49L04 Sight Glass 321702-401 The 360-degree mounting capability ensuresThe Lennox 49L04 Sight Glass is a heavy duty moisture and liquid indicator designed for precise refrigerant monitoring in high pressure commercial and residential HVACR systems. This moisture indicator sight glass features a high visibility element that provides an immediate visual diagnostic of the system's internal chemistry. As a critical liquid line sight glass, it allows technicians to verify refrigerant charge levels by identifying bubbles that