RFS/Celwave 636-6A-2-1, 154-164 Mhz, Compact Internal Duplexer, 50 Watt Quantity in Basket: None Code: 6366A21 Price: $323.40 Shipping Weight: 6.00 pounds Quantity: Radio Frequency Systems/Celwave 636-6A-2-1, Compact Duplexer 154-164 MHz, Frequency Separation 4.5 MHz, Power Rating to 50 Watts, 6 Cavities, UHF Female Connectors, 1-1/4" x 6-1/4" x 8-1/2", 3 Pounds. List Price $462.00.