Closed Retort Ring with Stem, 3.9" ID, Plated Mild Steel Subcategory_Temperature and Heat 75 inches end-to-end with three

75 inches end-to-end with three J-shaped side ports visualizing pressure drops at the constriction

this insulated 4mm-stackable safety lead carries up to 12A through nickel-plated split-hollow pins for branched-circuit student work

Large-format aluminum bucket-and-cylinder set for Archimedes-principle demonstration

Six 10 x 10cm unmounted plastic filter squares - red

Used to investigate force multiplication through multiple pulleys

Closed Retort Ring with Stem, 3.9" ID, Plated Mild Steel Subcategory_Temperature and Heat 75 inches end-to-end with threeClosed ring design provides continuous support on this plated mild steel retort ring, combining a 3. 9 inch inner diameter with a 5. 5 inch stem for elevated stand configurations.