The MF22-0009-00 from MAST Technologies is a Microwave Absorber with Insertion Loss -50 dB, Thickness 1 Inch/25.6 mm, Thickness 1 Inch, Thickness (mm) 25.6 mm, Operating Temperature -60 Degrees F to 250 Degrees F. Tags: Lossy Foam Absorber. More details for MF22-0009-00 can be seen below.