The SAAFCanister™ Delivery System is factory pre-filled with user-specific chemical media. Each canister is vibration filled to ensure that the media is uniformly packed, then bagged and carton packed.The SAAFCanister™ Delivery System consists of multiple individual canisters in metal or plastic execution, assembled into a galvanised sheet metal holding frame to fit standard dimension filter sections in air handling units. The SAAFCanister™ system comes factory-ready for installation. No special tools are needed to replace a canister. The individual canister seals and holds in the frame, due to its unique seal and bayonet-style clamping mechanism.