8 Litre Vacuum Chamber Degassing Silicone & 3 CFM Vacuum Pump full complete Kit. 3 CFM Vacuum Pump + 8 Litre Vacuum Chamber. 1 x 8 Litre Vacuum Chamber 227mm internal Dia x 200mm tall. Vacuum chambers are required to assure a bubble-free mould when mixing resin and silicone rubbers and slower setting resins.
eBay