Rubber Tapered Plug 51mm to 62mm Solid Test Tubes Bungs Stopper White 2 Pieces Flange Ball Bearings you can easily control the

you can easily control the air flow rate or close off an air duct if needed

50mm Slip x 50mm Slip Plumbing PVC Ball Valve White

and iron pipe

18 inch(W) x 0

Rubber Tapered Plug 51mm to 62mm Solid Test Tubes Bungs Stopper White 2 Pieces Flange Ball Bearings you can easily control theWhat is this? The Rubber Tapered Plug is great for laboratory utensils such as flasks, test tubes, or other laboratory applications, also can as a sewer plug, water pipe plug, or drain plug. What will I get? The tapered plug is in size of: Bottom Diameter: 51mm 2. 01 inch; Top Diameter: 62mm 2. 44 inch; Height: 39mm 1. 54 inch; Fit Hole Size: 55 60mm; In the package of: 2 x Rubber Tapered Plug Are there any advantages of the product? Made of Rubber,