Ideal Vacuum | ISO 63 Centering Ring Aluminum with Viton O-Ring, NW-63 Vacuum Flange Size, Typically Used With 2.5 Inch O.D. (63.50 mm) Tubing
uxcell Nitrile Rubber O-Rings, 5.5mm OD 2.5mm ID 1.5mm Width, Metric Nitrile Rubber Sealing Gasket, Pack of 100: Amazon.com: Industrial & Scientific
Pump Unions with O-Rings, One 2.5 inch, One 2.0 inch
O-RINGS Part # 2-230 N90 | Allegheny York
19mm x 24mm x 2.5mm O-Ring (8 pieces): Amazon.com: Industrial & Scientific
Nitrile Rubber O-Ring CS 2.5mm NBR Oring Seal Sealing OD 9mm-250mm Oil Resistant | eBay
Metric Buna O-rings 44 x 2.5mm Minimum 5 pcs - OringsandMore
Amazon.com: uxcell Nitrile Rubber O-Rings 60mm OD 55mm ID 2.5mm Width, Metric Sealing Gasket, Pack of 10 : Industrial & Scientific
Amazon.com: Prestige Sealing Ring Gasket for 2/3.5-Liter Deluxe Alpha Deluxe and 2.5/3/3.5-Liter Deluxe Plus Pressure Cookers(7.5"-inch) : Home & Kitchen
7000T Style Grafoil Ring Gasket For Pipe Size: 2 1/2(2.5) Inches (6.35Cm), Thickness:
2 Gun Metal Black O Ring 2.5 Inch New For Macrame, Crafting use | eBay
Amazon.com: DERNORD PTFE (Teflon) Tri-Clamp Gasket O-ring - 2.5 Inch Style Fits OD 77.5MM Sanitary Pipe Weld Ferrule (Pack of 2) : Industrial & Scientific