this unit is the standardized HVAC replacement part for several legacy models

it maintains critical superheat levels to prevent liquid slugging and optimize evaporator efficiency

Stainless Steel Trim: Enhanced durability and corrosion resistance

Direct OEM Matching: Drop-in replacement for York S1-02435930000 ensures zero-modification installation

Direct Compatibility: Exact OEM replacement for Lochinvar 100208806 and A

Lennox 49L04 Sight Glass 326070-701 this unit is the standardizedThe 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