20018013A O-Ring 2 Pack Compatible with Navien NP 240 NR 240

20018013A O-Ring 2 Pack Compatible with Navien NP 240 NR 240

Key features

• [2-Pack Value Set] Each package contains 2 premium silicone O-rings for convenient replacement and backup, reducing long-term maintenance expenses.
• [Precision Sizing] Engineered to metric dimensions 31.5mm inner diameter x 3.5mm thickness (Imperial equivalent: 2.36" x 3.54" x 0.39") for compatibility with NP-240/NP-240E NR240 water heaters and similar systems.
• [Multi-Brand Compatibility] Designed for standard storage/instant water heater models Compatible with Navien, Rheem, AO Smith, Kenmore and other brands with equivalent sealing mechanisms. Always verify your device specifications before installation.
• [Durable Silicone Construction] Manufactured with high-grade temperature-resistant (-40°F to 450°F) silicone rubber, providing: Leak-proof sealing, resistance to corrosion and mineral deposits, long-term flexibility under pressure, and deformation prevention in high-temperature environments.
• [Tool-Free Installation] Simplified DIY replacement process - no technical expertise required. Complete installation typically within 10 minutes.
• [Customer Support】24/7 manufacturer-backed assistance available Messaging System for order inquiries and product guidance.

Free shipping on orders $50+. 30-day hassle-free returns.