DuraTrap® AT HP
High-porosity filter engineered for catalyzed DPF and SCRF systems
The DuraTrap® AT HP (High Porosity) filter addresses the growing demand for catalyzed DPF (CDPF) and SCR-on-Filter (SCRF) systems. Its optimized microstructure with higher porosity and larger mean pore size allows substantially greater washcoat loading — enabling DOC, SCR, or TWC catalyst application — while maintaining equivalent or lower backpressure compared to standard porosity filters. The optional Asymmetric Cell Technology (ACT) variant further optimizes inlet-to-outlet cell volume ratio for maximum soot capacity.
Peak Regen Temp
1000°C (peak regen)
Continuous Temp
750°C (continuous)
Filter Material
High-Porosity Aluminum Titanate
Applications
Key Features
High Porosity Architecture
50–60% porosity and optimized pore size distribution for maximum washcoat capacity.
ACT Cell Technology
Asymmetric cell inlets/outlets optimize soot capacity and pressure drop simultaneously.
Catalyst Compatible
Support SCR, DOC, or TWC washcoats at high loading levels without backpressure penalty.
Pressure Drop Advantage
Significant ΔP benefit vs. SiC filters at equivalent washcoat loads across all drive cycles.