MENU Open menu www.labspherestore.com Toggle search bar What can we help you find? Submit search CART Standards Color Standards Fluorescent Standards Wavelength Standards Diffuse Reflectance Standards Targets Permaflect Targets Spectralon Targets Spheres Sphere Kits Components Port Plugs Adaptors Detectors Light Sources Port Adaptors Power Supplies Replacement Lamps Variable Attenuators Spectrometers Systems Goniometer / Goniophotometer Image Sensor Test Systems Laser Power Measurement Systems Light Measurement Systems Remote Sensing Calibration Systems Sunscreen Testing Optical Coatings and Materials Zenith Nav Menu 2 Nav Menu 3 Nav Menu 4 Nav Menu 5 Nav Menu 6 Nav Menu 7 Nav Menu 8 Home > Components > Port Reducer Alternative Views: Mounting onto a port frame, a Port Reducer reduces the clear aperature of that port frame. Product Code: AS-024XX-0XX Diameter Reduction*: First, Select Diameter Reduction Coating*: Then, Select Coating Qty: Description A Port Reducer mounts onto a port frame to aperture down the diameter of the port.