Using incorrect sealing solutions for your postage meter, folding and inserting machines can damage your equipment. Pitney Bowes E-Z Seal keeps your equipment in mint condition; it's anti-fungal and non-corrosive. By using generic brands or water you run the risk of mould and rust, which can result in having to repair or replace the entire machine. The Pitney Bowes E-Z Seal 20 L Cubetrainer is an economical way to purchase your E-Z Seal Sealing Solution. Use this to refill your existing cartridges or reservoir.