This genuine Aprilaire 201 filter features a surface-loading design that captures up to 88% of airborne particles between 3

particularly the "Z" dimension of 1 1/8" (or 1 3/8" with a heat shield)

since it is an ICP-manufactured part

What are the signs that my burner assembly needs to be replaced

Aurora Pump 476-0250-644 Mechanical Seal Kit 321894-708 This genuine Aprilaire 201 filterThe Aurora Pump 476 0250 644 Mechanical Seal Kit is a precision engineered pump repair kit designed to restore the hydraulic integrity of your pumping system. Engineered for high performance centrifugal pumps, this mechanical seal replacement ensures a leak free operation, preventing fluid loss and maintaining optimal pressure. Utilizing durable silicon carbide or premium carbon ceramic materials, the seal faces are built to withstand the rigorous