This is a beautiful FX 50 Fathom ready to go.  It is complete with silicone gray diaphragm, silicone duckbill, silicone hoses, silicone one way valves and mouthpiece.  Scroll down for all the details.

Price $500.00 plus $17.00 shipping 

Price $500.00 plus $15.00 shipping.

New silicone diaphragm

New silicone one way valves

New Silicone mouthpiece

New silicone hoses

Total rebuild using new seat and kit from VDH and set to factory specs.

Retrofitted with a US Divers Mistral internals.

Bench tested by Greg Barlow (the Voit master)