Water Storage Tank Material:GRP/FRP/SMC,Galvanized & Stainless steel Panel size:4ft*4ft,1x1m,1*0. ... provide panels in 1,220 mm x 1,220 mm for imperial and 1,000 mm x 1,000 mm ... for metric measurements. For tanks of non standard measurements required, we do provide ribbed ... , 1x1m, 1x0.5m, 0.5x0.5m“ X “ shapeBall shape1-5mmGRP/FRP/SMC 1x1m, 1x0.5m, 0.5x0.5mBall shape4-24mm