Surplus - Bandpass Filters
Surplus - Bandpass Filters
Surplus Bandpass Filters from Andover Corporation offer exceptional value on high-quality optical filters at reduced prices. These surplus items include standard, high-transmitting, and specialized bandpass filters that isolate specific wavelength regions while rejecting unwanted radiation.
Each surplus bandpass filter is manufactured to the same rigorous quality standards as our regular product line, featuring precisely controlled center wavelengths and bandwidths. Despite being offered at discounted prices, these filters maintain excellent optical performance, stability, and durability. Our surplus inventory includes filters across the spectrum from ultraviolet through visible to infrared wavelengths, making them ideal for researchers, educational institutions, and companies seeking cost-effective solutions for spectroscopy, fluorescence applications, imaging systems, and other optical setups. Inventory changes regularly based on availability, so we recommend checking our listings frequently for the best selection of wavelengths and specifications.
Showing 65–80 of 530 results
- Wavelength: 205.0 ±4.0
- Emission Line: N/A
- Operating Temperature: 23.0
- Parallelism: Commercial
- Bandwidth (FWHM): 22.0 ±4.0 nm
- Minimum Transmission: 20%
- Blocking: 1x10-4 avg. X-Ray to FIR
- Size: 25.0 +0 / -0.25
- Thickness: 3.5 +0 / -nom
- Scratch-Dig: 80/50
- Clear Aperture: 21.0
- Flatness: Commercial
- Effective Refractive Index: N/A
- Filter Type: 8
- Wavelength: 214.0 +3.0 / -0
- Emission Line: N/A
- Operating Temperature: 23.0
- Parallelism: Commercial
- Bandwidth (FWHM): 10.0 ±2.0 nm
- Minimum Transmission: 15%
- Blocking: 1x10-4 avg. X-Ray to FIR
- Size: 35.0 +0 / -0.2
- Thickness: 3.5 ±0.1
- Scratch-Dig: 60/40
- Clear Aperture: 31.0
- Flatness: Commercial
- Effective Refractive Index: N/A
- Filter Type: 7
- Wavelength: 220.0 ±2.0
- Emission Line: N/A
- Operating Temperature: 23.0
- Parallelism: Commercial
- Bandwidth (FWHM): 10.0 ±2.0 nm
- Minimum Transmission: 12%
- Blocking: 1 x 10-4 avg. X-Ray to FIR
- Size: 20.0 +0 / -0.2
- Thickness: 3.5 +0 / -nom
- Scratch-Dig: 80/50
- Clear Aperture: 16.0
- Flatness: Commercial
- Effective Refractive Index: N/A
- Filter Type: 7
- Wavelength: 225.0
- Emission Line: N/A
- Operating Temperature: 23.0
- Parallelism: Commercial
- Bandwidth (FWHM): 30.0 ±nom nm
- Minimum Transmission: 45%
- Blocking: T < 0.003 % (OD 2.5) above 320 nm
- Size: 25.0 Ø +0.0 / -0.25
- Thickness: 2.0 ±1.0
- Scratch-Dig: 80/50
- Clear Aperture: 21mm Ø min
- Flatness: Commercial
- Effective Refractive Index: N/A
- Filter Type: 8
- Wavelength: 226.0 +3.0 / -1.0
- Emission Line: N/A
- Operating Temperature: 23.0
- Parallelism: Commercial
- Bandwidth (FWHM): 10.0 ±2.0 nm
- Minimum Transmission: 12%
- Blocking: 1x10-4 avg. X-Ray to FIR
- Size: 10.0 +0 / -0.25
- Thickness: 3.5 +0 / -nom
- Scratch-Dig: 80/50
- Clear Aperture: 8.0
- Flatness: Commercial
- Effective Refractive Index: N/A
- Filter Type: 7
- Wavelength: 228.0 ±3.0
- Emission Line: N/A
- Operating Temperature: 23.0
- Parallelism: Commercial
- Bandwidth (FWHM): 30.0 ±5.0 nm
- Minimum Transmission: 20%
- Blocking: 1x10-4 avg. X-Ray to FIR
- Size: 76.2 Ø +0 / -0.25
- Thickness: 4.5 +0 / -nom
- Scratch-Dig: 80/50
- Clear Aperture: 68mm Ø min
- Flatness: Commercial
- Effective Refractive Index: N/A
- Filter Type: --
- Wavelength: 234.6 +1.0 / -0
- Emission Line: N/A
- Operating Temperature: 23.0
- Parallelism: Commercial
- Bandwidth (FWHM): 10.0 ±2 nm
- Minimum Transmission: 12%
- Blocking: 1x10-4 avg. X-Ray to FIR
- Size: 25.0 Ø +0 / -0.25
- Thickness: 3.5 +0 / -nom
- Scratch-Dig: Commercial
- Clear Aperture: 21mmØ
- Flatness: Commercial
- Effective Refractive Index: N/A
- Filter Type: 7
- Wavelength: 1964.0 +2.0 / -0
- Emission Line: N/A
- Operating Temperature: 23.0
- Parallelism: Commercial
- Bandwidth (FWHM): 10.0 ±2.0 nm
- Minimum Transmission: 60%
- Blocking: 1x10-4 avg. X-Ray to 3200nm
- Size: 25.0 Ø +0 / -0.25
- Thickness: 7.9 +0 / -nom
- Scratch-Dig: 80/50
- Clear Aperture: 21.0
- Flatness: Commercial
- Effective Refractive Index: N/A
- Filter Type: 2
- Wavelength: 1984.0 +2.0 / -0
- Emission Line: N/A
- Operating Temperature: 23.0
- Parallelism: Commercial
- Bandwidth (FWHM): 10.0 ±2.0 nm
- Minimum Transmission: 60%
- Blocking: 1x10-4 avg. X-Ray to 3200nm
- Size: 25.0 Ø +0 / -0.25
- Thickness: 9.5 +0 / -nom
- Scratch-Dig: 80/50
- Clear Aperture: 21mm Ø min
- Flatness: Commercial
- Effective Refractive Index: N/A
- Filter Type: 2
- Wavelength: 2000.0 ±10.0
- Emission Line: N/A
- Operating Temperature: 23.0
- Parallelism: Commercial
- Bandwidth (FWHM): 80.0 ±20.0 nm
- Minimum Transmission: 70%
- Blocking: 1x10-4 X-Ray to 3200nm
- Size: 25.0 Ø +0 / -0.25
- Thickness: 9.5 +0 / -nom
- Scratch-Dig: 80/50
- Clear Aperture: 21mm Ø min
- Flatness: Commercial
- Effective Refractive Index: N/A
- Filter Type: 4
- Wavelength: 2004.0 +1.0 / -0
- Emission Line: N/A
- Operating Temperature: 23.0
- Parallelism: Commercial
- Bandwidth (FWHM): 5.0 ±1.0 nm
- Minimum Transmission: 50%
- Blocking: 1 x 10-4 avg. X-Ray to 3200nm
- Size: 8.0 x 8.0 +0 / -0.25
- Thickness: 7.0 +0 / -nom
- Scratch-Dig: 80/50
- Clear Aperture: 6.0 x 6.0
- Flatness: Commercial
- Effective Refractive Index: N/A
- Filter Type: 2
- Wavelength: 2050.0 +1.0 / -0
- Emission Line: N/A
- Operating Temperature: 23.0
- Parallelism: Commercial
- Bandwidth (FWHM): 5.0 ±1.0 nm
- Minimum Transmission: 50%
- Blocking: 1 x 10-4 avg. X-Ray to 3200nm
- Size: 8.0 x 8.0 +0 / -0.25
- Thickness: 7.0 +0 / -nom
- Scratch-Dig: 80/50
- Clear Aperture: 6.0 x 6.0
- Flatness: Commercial
- Effective Refractive Index: N/A
- Filter Type: 2
- Wavelength: 2050.0 ±5.0
- Emission Line: N/A
- Operating Temperature: 23.0
- Parallelism: Commercial
- Bandwidth (FWHM): 50.0 ±10.0 nm
- Minimum Transmission: 70%
- Blocking: 1x10-4 X-Ray to 3200nm
- Size: 25.0 Ø +0 / -0.25
- Thickness: 9.5 +0 / -nom
- Scratch-Dig: 80/50
- Clear Aperture: 21mm Ø min
- Flatness: Commercial
- Effective Refractive Index: N/A
- Filter Type: 3
- Wavelength: 2150.0 +2.0 / -0
- Emission Line: N/A
- Operating Temperature: 23.0
- Parallelism: Commercial
- Bandwidth (FWHM): 10.0 ±2.0 nm
- Minimum Transmission: 70%
- Blocking: 1x10-4 avg. X-Ray to 3200nm
- Size: 50.0 Ø +0 / -0.25
- Thickness: 8.5 +0 / -nom
- Scratch-Dig: 80/50
- Clear Aperture: 45mm Ø min
- Flatness: Commercial
- Effective Refractive Index: N/A
- Filter Type: 2
- Wavelength: 2300 ±5.0
- Emission Line: N/A
- Operating Temperature: 23.0
- Parallelism: Commercial
- Bandwidth (FWHM): 50.0 ±10 nm
- Minimum Transmission: 70%
- Blocking: 1x10-4 avg. X-Ray to 3200nm
- Size: 50.0 Ø +0.0 / -0.25
- Thickness: 7.0 +0 / -nom
- Scratch-Dig: 80/50
- Clear Aperture: 45mm Ø min
- Flatness: Commercial
- Effective Refractive Index: N/A
- Filter Type: 3
- Wavelength: 2325.2 ±2.0
- Emission Line: N/A
- Operating Temperature: 23.0
- Parallelism: Commercial
- Bandwidth (FWHM): 20.0 ±4.0 nm
- Minimum Transmission: 60%
- Blocking: 1x10-4 avg. X-Ray to 3200nm
- Size: 25.0 Ø +0 / -0.25
- Thickness: 9.5 +0 / -nom
- Scratch-Dig: 80/50
- Clear Aperture: 21mm Ø min
- Flatness: Commercial
- Effective Refractive Index: N/A
- Filter Type: 4
PART NO.
DESCRIPTION
1 - 5 pcs.
6 - 10 pcs.
> 10 pcs.
Stock Status
$109.25
$109.25
$109.25
In Stock: 10
$260.00
$260.00
$260.00
In Stock: 2
$380.00
$380.00
$380.00
In Stock: 22
$455.00
$455.00
$455.00
In Stock: 2
$240.00
$240.00
$240.00
In Stock: 6
$665.00
$665.00
$665.00
In Stock: 1
$405.00
$405.00
$405.00
In Stock: 4
$482.00
$482.00
$482.00
In Stock: 14
$725.00
$725.00
$725.00
In Stock: 18
$925.00
$925.00
$925.00
In Stock: 4
$169.00
$169.00
$169.00
In Stock: 9
$135.00
$135.00
$135.00
In Stock: 42
$875.00
$875.00
$875.00
In Stock: 11
$1,125.00
$1,125.00
$1,125.00
In Stock: 3
$1,875.00
$1,875.00
$1,875.00
In Stock: 6
$950.00
$950.00
$950.00
In Stock: 25