Amazon.com: 1PC STAINLESS STEEL TUBE OD 12mm/14mm/16mm Outer Diameter ID 6MM -12MM LENGTH 50MM -500MM (Color : Length 150mm, Size : OD12 x ID9mm) : Industrial & Scientific
Amazon.com: Stainless Steel Sample Cook Valve 316 1/2", Drain Tap with OD12.7mm And ID9.2mm : Home & Kitchen
Amazon.com: 4 inch Long 10 Piece Premium Glass Tubes OD 12 mm Thickness 2 mm Tubing Borosilicate Blowing Tubes : Industrial & Scientific
Amazon.com: 1/4" OD 12 pcs Black Quick Connect Push in to Connect for Water Reverse Osmosis System Water Tube Fitting (12L) : Industrial & Scientific
Amazon.com: 6 inch Long 10 Piece Premium Glass Tubes OD 12 mm Thickness 2 mm Tubing Borosilicate Blowing Tubes : Industrial & Scientific
Amazon.com: 3 Inch Long 10 Piece Premium Glass Tubes OD 12 mm Thickness 2 mm Tubing Borosilicate Blowing Tubes : Industrial & Scientific
Amazon.com: Colorful 4 inch Long 10 Piece Premium Glass Tubes OD 12 mm Thickness 2 mm Tubing Borosilicate Blowing Tubes : Industrial & Scientific
Rubber O Rings O Ring Seal Gasket Thickness CS4mm OD12-200mm Wear Resistant Automobile Petrol Nitrile Rubber O-Ring Waterproof Black Sealing Gasket (Color : Black, Size : OD 16MM (30PCS)_CS 4MM): Amazon.com: Industrial
Amazon.com: 10 Pcs 4 inch Long Premium Glass Tubes OD 12 mm Thickness 1.5 mm Tubing Borosilicate Blowing Tubes : Industrial & Scientific
Amazon.com: Marine Tech Tools Retaining Ring Wrench 104mm OD, 12 Tooth, Attachment to Wrench Handle (AMT0031), Removes Bearing Carriers, Fits on Yamaha Retaining Rings : Sports & Outdoors
OPERMAXER Flanged Sink Tailpiece 1-1/4 in. OD, 12 inch Brass Extension Tube for Trap, Drain Connections, Siphon Immersion Pipe For Bathroom Under Sink, Brushed Gold - Amazon.com
Amazon.com: 1/4" OD 12 pcs Black Quick Connect Push in to Connect for Water Reverse Osmosis System Water Tube Fitting (6L+6T) : Industrial & Scientific
Amazon.com: MENTCH Electric Cap Slip Ring Flange C Type OD12.5mm 6 Wire 1.5A Mini Slip Ring 13.5 Long : Industrial & Scientific
Amazon.com: Glass tubes 12 Piece, 8 Inch Long Borosilicate Glass Tubes OD 12 mm Thickness 1.5 mm Colorful Industrial Glass Tubing for Tall Cup (12mm / Multiple Colors) : Industrial & Scientific
Amazon.com : JOYPRO Drip Irrigation Fittings for 1/2 inch Tubing (0.60"-0.63" OD), 12 Pieces Barbed Elbow Drip Parts Locked Elbow Connectors, Drip Line Nuts Connectors for 1/2" Drip Irrigation Hose (13mm ID) :
WOOLIG CS 4mm OD12-98mm NBR Rubber O Ring O-Ring Oil Sealing Gasket Automobile Sealing (Size : 12mm x 4mm 20pcs, Color : 4 mm): Amazon.com: Industrial & Scientific
Amazon.com: MANGAO 1 PCS 2 Channel 2A 5A Conductive Slip Ring OD12.5mm Rotary Joint Slip Ring Connector for Wind Turbine (Color : Dia.12.5mm 2CH 5A) : Tools & Home Improvement