Amazon.com: Beduan Push to Connect Fitting, 5/32" Tube OD Pneumatic Quick Adapter Tubing Air Hose Line Pipe Fitting (Pack of 12) : Industrial & Scientific
uxcell 50mm X 50mm PVC Pipe Fitting Union Solvent Socket Quick Connector Blue - Amazon.com
Amazon.com: POWERTEC 70272-P4 Clear PVC Pipe 4" x 36" Long, 4PK, Rigid Plastic Tubing for Dust Collection Hose & Fittings : Tools & Home Improvement
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Schedule 40 Male Adapter - 1 1/2" Male x 2" Slip - Amazon.com