This product includes only the collar and gasket for the Multiscreen HTS Vacuum Manifold system. The recommended pressure for general use is 9" Hg or 4.4 psi, with a maximum pressure of 18" Hg or 8.8 psi. Please see the complete dimensions below, along with links to the datasheet and product user guide.
Multiscreen HTS Vacuum Manifold datasheet:
https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/product/documents/237/290/pf2014en00.pdf
Multiscreen HTS Vacuum Manifold User Guide:
https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/product/documents/231/869/p36530-revc-web.pdf

