Two Parallel Necks Multiple Adapter, 19/26 Socket and 19/26 Cone, Borosilicate Glass Glass Flasks_Volumetric Flasks - Class A Cut-away 17-inch active volcano model

Cut-away 17-inch active volcano model reveals magma chamber

and cylindrical apparatus up to 3 inches across

5% accuracy in a fully enclosed plastic case

sealed inside a transparent tube with two terminals and plus-or-minus 1% precision

providing the high-turns winding for transformer ratio and electromagnetic induction demonstrations

Two Parallel Necks Multiple Adapter, 19/26 Socket and 19/26 Cone, Borosilicate Glass Glass Flasks_Volumetric Flasks - Class A Cut-away 17-inch active volcano modelMultiple adapter in borosilicate glass features two parallel necks with 19 26 sockets for connecting multiple components in chemistry apparatus.