The Speedload Solid PVA Bags from NASH are ideal as an addition to the Speedload PVA System. Available in 2 variants slow melt and fast melt. Special sized PVA bags for use with the Speedload system, available in 3 sizes and both fast and slow dissolving rates for different conditions. Small 55mm x 125mm (20 bags), Medium 70mm x 155mm (20 bags), Large 85mm x 180mm (20 bags).