Description
Navien 30003307E Condensate Siphon Trap — PP-V0
The Navien 30003307E is an OEM condensate siphon trap engineered specifically for Navien’s high-efficiency condensing boilers and tankless water heaters. Constructed from UL 94 V-0 rated polypropylene (PP-V0), this siphon is built to withstand the mildly acidic condensate produced by condensing appliances, ensuring long-lasting, corrosion-resistant performance.
Compatibility
- Compatible with Navien CR and CC (condensing combi-boiler) series
- Compatible with Navien NR and NP (condensing tankless water heater) series
- Genuine Navien OEM replacement part
Key Features
- UL 94 V-0 rated polypropylene construction for superior chemical and heat resistance
- Designed to manage and safely route acidic condensate away from the appliance
- Maintains proper condensate drainage to protect system components and drain lines
- Direct OEM fit — no modification required for compatible Navien models
- Helps maintain system efficiency and prevent condensate-related damage
Why Replace Your Condensate Siphon?
A properly functioning condensate siphon is critical to the safe operation of any high-efficiency condensing appliance. Over time, siphon traps can become clogged, cracked, or degraded by acidic condensate. Replacing with a genuine Navien OEM part ensures proper fit, reliable drainage, and continued compliance with manufacturer specifications.
Part Information
- Brand: Navien
- Part Number: 30003307E
- Material: PP-V0 (UL 94 V-0 Rated Polypropylene)
- Application: Condensate siphon/trap for condensing boilers and water heaters
- Series Compatibility: CR, CC, NR, NP







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