Amazon.com: TANFEI 316 Stainless Steel Marine Boat Deck Fuel Filler Keyless Cap for Boat Yacht (1-1/2 inch (38mm)) : Sports & Outdoors
High Pressure Resistance 2Pcs 316 Stainless Steel Compression Fitting Good Sealing for Liquid for Energy Conservation(Ф1/4): Amazon.com: Industrial & Scientific