Specification Brand : LABOY BulletPoint : Provides mechanical strength and little permeability BulletPoint1 : DESIGN---This is a buchner funnel made of borosilicate glass, on top of the funnel-shaped part there is a cylinder with a sealed in perforated glass disc using with filter paper.The liquid to be filtered is poured into the cylinder and drawn through the fritted glass disc. This desgin solve the contamination problem with fritted disc and also the blindness problem with ceramic buchner funnel. BulletPoint2 : ADVANTAGE & FUNCTION----A buchner funnel using vacuum suction for filtration can proceed filtration more quickly than common simple filter funnel via the force of gravity.It is commonly used in organic chemistry to collect recrystallized compounds.This buchner funnel is usually used with a filtering funnel with side hose connection to a vacuum source,a rubber buchner flask adapter,and vacuum pump,vacuum tubing.It is not recommended for filtration where pressure would exceed 15psi. BulletPoint3 : DIMENSIONS------.The outer diameter of the glass disc plate is 90mm.The height above plate is 90mm. The total height is 230mm.The capacity of the cylinder is 500mL. BulletPoint4 : HEAVY WALL ---This buchner funnel is heavy-wall designed , made by hand-blowing according to ASTM E438 ,made of high-quality borosilicate glass and annealed at 800 degree Celsius ,can be heated directly in an open flame and can withstand typical laboratory thermal variations in Chemistry processes like heating and cooling,durable and reusable. BulletPoint5 : 100% 90 DAY MONEY BACK GUARANTEE If you are not satisfied for any reason, simply return for a full refund, no questions asked. You have nothing to lose.Please also kindly undertand glassware is fragile, even if we pack them carefully,it may be broken during the shipment ,if you receive the items in broken status,don't hesitate to contact us ,we will arrange free replacement or full refund. Capacity : 2.70512 quarts Color : White ExternallyAssignedProductIdentifier1 : 762047801605 ExternallyAssignedProductIdentifier2 : 0762047801605 ExternallyAssignedProductIdentifier3 : 00762047801605 ItemName : Laboy Glass Buchner Filter Funnel 500mL with 90mm O.D.Perforated Plate Chemistry Filtration Apparatus Lab Glassware ItemPackageDimensions_Height : 2 inches ItemPackageDimensions_Length : 2 inches ItemPackageDimensions_Width : 2 inches ItemPackageQuantity : 1 ItemTypeKeyword : science-lab-buchner-funnels Manufacturer : Laboy Material : Borosilicate glass 3.3 ModelNumber : HMF030803 NumberOfItems : 1 PartNumber : HMF030803 ProductSiteLaunchDate : 2016-09-03T06:53:16.862Z Size : 1/2" height x 3/8" top x 9/32" bottom StreetDate : 2017-05-18T00:00:01Z SupplierDeclaredDgHzRegulation : unknown UnitCount : 1