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Amazon.com: Structural Pipe Fitting, 1-1/4" Cross - E Short, 21X-7, Aluminum Magnesium, Please note. ID of fitting is 1.68, to take nominal 1-1/4" steel pipe which all have an OD of 1.66". :
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USA Industrials - Aluminum Pipe Fittings; Material Grade: Class 150 - 28852531 - MSC Industrial Supply
Hollaender Structural Pipe Fitting, Adjustable Flange, Aluminum, 1.25 in Pipe Size, 32510 lb Tensile Strength 46ADJ-7 | Zoro
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Silver Aluminum 25mm Clamp Pipe Fittings Scaffold Tube Tee Connector Drying Rack Pipe Fitting Shelf Storage Rack - Amazon.com
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USA Industrials - Aluminum Pipe Fittings; Material Grade: Class 150 - 28831733 - MSC Industrial Supply
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