Description ***Surge GEA Koolway Manhole cover Fits older version GEA Westfalia Surge Milk Tanks (pre-mid 2006) #11 in detail image drawing High Quality Solid Silicone 40 Duro 1.08 inch thick Approx 18.5 inch I.D. Inside Diameter Approx 20.5 O.D. Outside Diameter *Measure before ordering. this is the less common size. It is NOT RETURNABLE Made in USA by GEA Farm Technologies Inc 8/23
