Amazon.com: FangKingNo10pcs 3/4" White PVC Pipe Coupling Adapter Pipe Fittings (Slip to Slip) Schedule 40 Easy to Install,and High Tensile for Home or Industrial Use (1 Pack of 10pcs) (0.75 Inch) :
FORMUFIT 1-1/2 inch 3-Way PVC Fittings, Elbow Corner, Furniture Grade, 1-1/2” Size Fitting, White, Schedule 40 PVC Pipe Connector, Made in USA (Pack of 4): Amazon.com: Industrial & Scientific
Pipe, Schedule 40, 6 In, 10 ft. Length, PVC
409-010 1 Spg x Slip 90 Street Elbow PVC 40: Amazon.com: Industrial & Scientific
1CAMO 4-Way Tee PVC Fittings, SCH 40, White - 1 Inch PVC Elbow Fittings PVC Pipe Connectors - Build Heavy Duty Furniture with 1 Inch PVC Pipe (4 Pack) - - Amazon.com
Amazon.com: letsFix 1-1/2" PVC Fittings 4 Way (4-Pack), 1.5" PVC Pipe Connector PVC Elbow - Heavy Duty Furniture Grade 4 Way PVC Fittings for All DIY PVC Structure and Frames, Fits 1-1/2"
Union, PVC, 40, 2 In., FPT x FPT: Pipe Fittings: Amazon.com: Tools & Home Improvement
Spears 401 Series PVC Pipe Fitting, Tee, Schedule 40, White, 1" x 3/4" Socket: Industrial Pipe Fittings: Amazon.com: Industrial & Scientific