How much does this cost to the nearest dollar?

Electro-Harmonix 6L6EH Power Vacuum Tube, Platinum Matched Quad
Power Beam tetrode with large plate dimensions and improved grid structure for increased power handling capabilities. Modeled after the vintage RCA 6L6GC black plate. Mica spacers with metal springs eliminate tube rattle and microphonic Superior tone and performance to most other 6L6 or KT66 types Platinum quad (4 tubes), computer-matched by manufacturer on proprietary equipment 5881 equivalent Weight 9.6 ounces, Dimensions 3.5 x 3.5 x 4.75 inches, model number QUAD, Rank Musical Instruments 78627, Guitar Amplifier Tubes 271, Available July 16, 2004

Price is $185.00
Price: $184.99