The Lennox Y7702 (manufacturer reference 12100501000021) Drain Hose is an OEM replacement component designed to ensure proper condensate removal in compatible Lennox HVAC systems. This durable hose prevents moisture buildup, reduces the risk of overflow, and supports efficient system operation by guiding water safely away from the drain pan.

Manufactured from high-quality flexible material, the Y7702 Hose offers reliable long-term performance and an exact fit for the systems it supports. It is commonly used in cooling and heat pump applications where consistent condensate drainage is essential. If you are servicing a unit with restricted or cracked drain tubing, replacing it with this genuine Lennox part helps maintain system reliability and avoid moisture-related issues.

This replacement part is ideal for routine maintenance, repairs, or preventive service performed by HVAC technicians and contractors.

 

Key Features:

 

• Genuine Lennox OEM drain hose
• Supports proper condensate flow and prevents water backup
• Flexible, durable construction for long service life
• Designed for precise fit and compatibility with Lennox units
• Helps protect drain pans, coils, and surrounding components from moisture damage