Confirm the exact configuration
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.
Thorlabs
Thorlabs FEL1100 is the exact manufacturer part number for Ø1" Longpass Filter, Cut-On Wavelength: 1100 nm. The official catalog lists this item as discontinued. The official replacement model is FELH1100. Submit the exact part number, quantity, destination, and application details for an RFQ.
For a faster response, include quantity, condition, and delivery destination.
Engineering context
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.
Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.
Our sourcing response is prepared against Thorlabs FEL1100. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.