Brewers Hardware Silicone O-Ring for 3/8" Compression Fitting
1/8 NPT to -8 O-Ring Boss (ORB) Adapter – ACUITY Instruments
Nostalgic AC - # 8 Female Step Down O-ring Fitting to #6 Hose
8 inch Silicone O-ring | Geo's Reef
DANCO #8 O-Ring (10-Pack) 96725 - The Home Depot
Buy Twisted Cotton O-Rings (1/8′′) in Bulk | Superior Bands
Ideal Vacuum | ASA 8 Inch Blank Flange with O-Ring Groove, Not Bored, Not Rotatable, 13.50 in OD, 11.75 in BCD, 0.81 in Hole Diameter, 8 Holes, 304 Stainless Steel