Reverb Tank Package Includes: Reverb Tank (Equivalent to 4AB3C1B), 17" Tank Bag, & 3FT RCA Cable Pair. Tank info: 4AB3C1B Reverb Tank Long (16 3/4") 2 Spring Unit, Long Decay Input Impedance 8 Ohms, Output Impedance 2250 Ohms Mounting: Horizontal Open Side Down. Connectors: Input Insulated/Output Grounded ReverbTankAddOn$64.95 TANK ONLY - Reverb Tank Equivalent to 4AB3C1B reverbtank$38.95 Triode, USA Customer Service M-F 9AM-4PM CT 1-800-774-3201 Email us Anytime: questions@triodestore.com