The Lochinvar & A.O. Smith 100289339 Neutralizer is a critical condensate neutralization kit designed for high-efficiency condensing boilers and water heaters. Rated for systems up to 300,000 BTU/hr (300K BTU), this CN2-300C model efficiently raises the pH level of acidic flue gas condensate, protecting your client's cast iron drains, concrete floors, and septic systems from corrosive damage. This unit serves as the direct OEM replacement for part numbers 100157721 and KIT3087, ensuring seamless HVAC part compatibility during maintenance or system upgrades. Featuring a 2-inch diameter clear tube for rapid visual media inspection, the 100289339 neutralizer utilizes a high-performance blend of calcite and magnesium oxide media. The integrated unions with O-rings allow for easy condensate drain line installation and simplified media recharging without the need to cut existing pipework. Designed specifically for horizontal installation, this robust acidic condensate treatment solution helps contractors satisfy local plumbing codes and environmental standards by preventing low-pH discharge from entering the wastewater stream. Key Benefits Universal Compatibility: Direct replacement for discontinued models 100157721 and KIT3087, fitting a wide range of Lochinvar and A.O. Smith commercial and residential condensing units. High Capacity Protection: Engineered to handle up to 300BTU of heating input, effectively neutralizing up to 3 gallons of acidic condensate per hour. Simplified Service: The clear tube design and threaded unions allow for 30-second visual checks and mess-free media replenishment. Code Compliance: Ensures wastewater discharge remains within safe pH limits (typically above 5.0), preventing fines and infrastructure degradation. Complete Kit: Includes mounting brackets and PVC adapters to facilitate secure, professional mounting on any job site. Common Questions When should the neutralizing media be replaced? Technicians should test the effluent pH during annual maintenance. For a standard 300K BTU system, the media typically requires recharging every 2,000 operating hours or once the discharge pH drops below 6.0. Can this unit be mounted vertically? The CN2-300C 100289339 is specifically engineered for horizontal mounting to ensure maximum contact time between the condensate and the neutralizing pellets. Does this kit include the necessary fittings for PVC pipe? Yes, the assembly comes with integrated 1/2" NPT or hose barb adapters, allowing for direct connection to standard schedule 40 PVC or flexible tubing. This item is not eligible for free shipping. Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
