Fronius Genuine Gas Lens (AKA Gas Diffuser) 42,0001,1345 Fronius Sale! from 2218 /per Qty. Add to Cart This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Fronius Genuine Gas Lens (AKA Gas Diffuser) 42,0001,1345 SKU:FRP 42,0001,1345