The Maxitrol KIT-GF40 Replacement Filter is a professional-grade maintenance solution designed specifically for GF40 series gas filters. As an OEM-certified kit, it includes a high-efficiency polypropylene fleece filter mat and a precision-engineered nitrile O-ring to ensure a gas-tight seal after every service interval. This kit is essential for protecting downstream components—such as gas pressure regulators and automatic shut-off valves—from particulate contamination as small as 50 microns. Engineered for HF2000 series utility, this replacement insert maintains the flow integrity required for 1/2" NPT gas lines in residential, commercial cooking, and industrial burner applications. Using a genuine Maxitrol GF40 filter kit prevents excessive pressure drop, which can compromise appliance performance and lead to costly emergency service calls. Field technicians trust this kit to ensure clean gas flow for natural, manufactured, mixed, and LP gases, maintaining system safety and operational efficiency in high-demand environments. Key Benefits for Technicians 50-Micron Filtration: High-density polypropylene fleece captures fine debris, preventing blockage in sensitive modulator and regulator orifices. Leak-Proof Seal: Includes a factory-spec GF40 O-ring to provide a secure, pressure-resistant seal, critical for maintaining 15 PSI max inlet integrity. Broad Compatibility: Seamlessly fits Maxitrol GF40-44-A-0 and related 1/2" gas filter assemblies used across diverse HVACR and process heating systems. Reduced Pressure Drop: Replacing the internal filter mat restores optimal flow capacity, preventing nuisance drop-outs in gas-fired equipment. Common Questions When should the KIT-GF40 filter be replaced? In accordance with standard maintenance protocols, the filter mat should be replaced when the differential pressure drop across the filter exceeds 1 kPa (10 mbar) or during annual inspections of the gas train. Is this filter compatible with LP gas and air mixtures? Yes, this Maxitrol gas filter kit is rated for Gas Families 1, 2, and 3, making it suitable for natural gas, LP gas, propane-air mixtures, and clean air applications. Does the kit include the housing? No, the KIT-GF40 is a service kit containing only the internal replacement filter mat and the required sealing O-ring. It is designed for use within existing GF40 series aluminum housings. 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.
