Inquiry (采购产品): Custom Grommet Here are the basic measurements of the grommet, standard style. A=2-3/4 B=2 C=1/4 D=1/8 E=2-1/2 400*F Flange out of bottom surface and B that tappers in and down 1/8 x 1/8 The gromet will have a pipe going through it that will be taken out daily. I'm not sure what kind of rubber would be best for this kind of wear. No mechanical moving parts once in place, just heat. There is also a flange that sticks out of the bottom of B on one side. This is to grip a 2" pipe going through the grommet. It is simple.. but if your confused, I'll send you a drawing. It should angle inwards. **** Hidden Message ***** Kit Hoffman 97330 USA Company: Quisto Works E-mail: kithoffman@gmail.com **** Hidden Message ***** kithoffman@gmail.com