Constructed with ultra-strong molded pliable rubber flanges which absorb vibration and allow for secure attachment and can also be stretched for up to 1/16" (1.5mm) to fit in-between sizes Washable and reusable Base Outside Diameter: 3.5 in (89 mm) Flange Inside Diameter: 2.25 in (57 mm) Flange Length: 0.625 in (16 mm) Flange Type: Centered Height: 4 in (102 mm) Top Outside Diameter: 2 in (51 mm) Top Style: Metal Top Material/Finish: Chrome Filter Material: Cotton Gauze Flanges: 1 Filter Re-Oiling Amount: 0.34 oz (10 ml) Weight: 0.53 lb (0.24 kg)