1-1/4 inch Size PVC Pipe Fittings - FORMUFIT

1-1/4 in. Size PVC

FORMUFIT 1-1/4" PVC products are the standard size for most structural projects. Known as the goldilocks size; it's 'not too big and not too small.' This perfect middle-ground makes the 1-1/4" PVC size ideal for manufacturing durable furniture applications without too much bulk or heft while maintaining strength. Since it is very rigid, 1-1/4" PVC works well to build patio furniture, pool ladders, beach carts, and storage shelves. Furthermore, 1-1/4" size is the most diverse FORMUFIT product line with tons of extra accessories, such as Caster Pipe Caps, Ball Caps, Fishmouth Adapters, PipeClamps, and more to complete your project.

  • External-fit 1-1/4" Size PVC products have a socket diameter of 1-5/8" (1.660 in.), which is equal to the actual outside diameter of a 1-1/4" size PVC pipe.
  • Internal-fit products will only fit 1-1/4" Schedule 40 size PVC pipe, which has an average inside diameter of 1.380 inches.  Internal-fit products will not work with Schedule 80 or thinwall PVC pipe sizes.

Important Size Info

FORMUFIT 1-1/4 in. fitting products work with 1-1/4 in. Schedule 40 PVC pipe, which has an actual outside diameter of 1-5/8" (1.660 in.). For sizing information, please see our PVC 101 page.

Regular price $3.59
Sale price $3.59
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FORMUFIT 1-1/4 inch 3-Way PVC Fittings in White connect three pipe segments to create corners in projects, structures, and PVC plans. These 1-1/4 in. 3-Way corner fittings accept three (3) segments...
Regular price $3.89
Sale price $3.89
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FORMUFIT 1-1/4 inch 3-Way PVC Fittings in Black connect three pipe segments to create corners in projects, structures, and PVC plans. These 1-1/4 in. 3-Way corner fittings accept three (3) segments...
Regular price $3.89
Sale price $3.89
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FORMUFIT 1-1/4 inch 3-Way PVC Fittings in Gray connect three pipe segments to create corners in projects, structures, and PVC plans. These 1-1/4 in. 3-Way corner fittings accept three (3) segments ...
Regular price $4.79
Sale price $4.79
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FORMUFIT 1-1/4 inch 3-Way PVC Fittings in Red connect three pipe segments to create corners in projects, structures, and PVC plans. These 1-1/4 in. 3-Way corner fittings accept three (3) segments o...
Regular price $4.79
Sale price $4.79
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FORMUFIT 1-1/4 inch 3-Way PVC Fittings in Orange connect three pipe segments to create corners in projects, structures, and PVC plans. These 1-1/4 in. 3-Way corner fittings accept three (3) segment...
Regular price $4.79
Sale price $4.79
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FORMUFIT 1-1/4 inch 3-Way PVC Fittings in Yellow connect three pipe segments to create corners in projects, structures, and PVC plans. These 1-1/4 in. 3-Way corner fittings accept three (3) segment...
Regular price $4.79
Sale price $4.79
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Unit price
per 
FORMUFIT 1-1/4 inch 3-Way PVC Fittings in Green connect three pipe segments to create corners in projects, structures, and PVC plans. These 1-1/4 in. 3-Way corner fittings accept three (3) segments...
Regular price $4.79
Sale price $4.79
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Unit price
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FORMUFIT 1-1/4 inch 3-Way PVC Fittings in Blue connect three pipe segments to create corners in projects, structures, and PVC plans. These 1-1/4 in. 3-Way corner fittings accept three (3) segments ...
Regular price $4.79
Sale price $4.79
Regular price
Unit price
per 
FORMUFIT 1-1/4 inch 3-Way PVC Fittings in Purple connect three pipe segments to create corners in projects, structures, and PVC plans. These 1-1/4 in. 3-Way corner fittings accept three (3) segment...
Regular price $4.79
Sale price $4.79
Regular price
Unit price
per 
FORMUFIT 1-1/4 inch 3-Way PVC Fittings in Pink connect three pipe segments to create corners in projects, structures, and PVC plans. These 1-1/4 in. 3-Way corner fittings accept three (3) segments ...
Regular price $8.99
Sale price $8.99
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FORMUFIT 1-1/4 inch 3-Way PVC Fittings in Clear connect three pipe segments to create corners in projects and structures. These UV-resistant clear PVC 1-1/4" 3-Way elbow fittings accept three (3) s...
Regular price $4.09
Sale price $4.09
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FORMUFIT 1-1/4 in. 4-Way PVC Tee Fittings in White are a straightforward solution to assemble offset or tiered structures made from PVC pipe. 4-Way PVC Tee fittings give your project the extra dime...
Regular price $4.49
Sale price $4.49
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FORMUFIT 1-1/4 in. 4-Way PVC Tee Fittings in Black are a straightforward solution to assemble offset or tiered structures made from PVC pipe. 4-Way PVC Tee fittings give your project the extra dime...
Regular price $4.49
Sale price $4.49
Regular price
Unit price
per 
FORMUFIT 1-1/4 in. 4-Way PVC Tee Fittings in Gray are a straightforward solution to assemble offset or tiered structures made from PVC pipe. 4-Way PVC Tee fittings give your project the extra dimen...
Regular price $5.89
Sale price $5.89
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Unit price
per 
FORMUFIT 1-1/4 in. 4-Way PVC Tee Fittings in Red are a straightforward solution to assemble offset or tiered structures made from PVC pipe. 4-Way PVC Tee fittings give your project the extra dimens...
Regular price $5.89
Sale price $5.89
Regular price
Unit price
per 
FORMUFIT 1-1/4 in. 4-Way PVC Tee Fittings in Orange are a straightforward solution to assemble offset or tiered structures made from PVC pipe. 4-Way PVC Tee fittings give your project the extra dim...
Regular price $5.89
Sale price $5.89
Regular price
Unit price
per 
FORMUFIT 1-1/4 in. 4-Way PVC Tee Fittings in Yellow are a straightforward solution to assemble offset or tiered structures made from PVC pipe. 4-Way PVC Tee fittings give your project the extra dim...
Regular price $5.89
Sale price $5.89
Regular price
Unit price
per 
FORMUFIT 1-1/4 in. 4-Way PVC Tee Fittings in Green are a straightforward solution to assemble offset or tiered structures made from PVC pipe. 4-Way PVC Tee fittings give your project the extra dime...
Regular price $5.89
Sale price $5.89
Regular price
Unit price
per 
FORMUFIT 1-1/4 in. 4-Way PVC Tee Fittings in Blue are a straightforward solution to assemble offset or tiered structures made from PVC pipe. 4-Way PVC Tee fittings give your project the extra dimen...
Regular price $5.89
Sale price $5.89
Regular price
Unit price
per 
FORMUFIT 1-1/4 in. 4-Way PVC Tee Fittings in Purple are a straightforward solution to assemble offset or tiered structures made from PVC pipe. 4-Way PVC Tee fittings give your project the extra dim...
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Regular price $5.89
Sale price $5.89
Regular price
Unit price
per 
FORMUFIT 1-1/4 in. 4-Way PVC Tee Fittings in Pink are a straightforward solution to assemble offset or tiered structures made from PVC pipe. 4-Way PVC Tee fittings give your project the extra dimen...
Regular price $8.99
Sale price $8.99
Regular price
Unit price
per 
FORMUFIT 1-1/4 in. 4-Way PVC Tee Fittings in Clear are a straightforward solution to assemble offset or tiered structures made from PVC pipe. UV-resistant clear 4-Way PVC Tee fittings give your pro...
Regular price $5.99
Sale price $5.99
Regular price
Unit price
per 
FORMUFIT 1-1/4 in. 5-Way PVC Cross fittings in White connect 1-1/4" Size PVC pipe at five points on three planes. 5-Way Cross fittings are essential when building a base, stand, or footing applicat...
Regular price $6.49
Sale price $6.49
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FORMUFIT 1-1/4 in. 5-Way PVC Cross fittings in Black connect 1-1/4" Size PVC pipe at five points on three planes. 5-Way Cross fittings are essential when building a base, stand, or footing applicat...