The 3670-495 from Holland Shielding Systems is a Microwave Absorber with Absorption 20 to 50 dB, Frequency 30 MHz to 110 GHz, Power 1.5 kW, Thickness 19.48 Inch/495 mm, Thickness 19.48 Inch. Tags: Pyramid, Wedge Absorber, Foam Absorber. More details for 3670-495 can be seen below.