1" Internal PVC Coupling - Furniture Grade

Product Compatibility

1 pipe dimension

This product will fit 1" Size PVC pipe, which has an outside diameter of 1.315" (1-5/16") and an inside diameter of approximately 1". See our PVC 101 section for more info.

This product is not compatible with CPVC or Copper Tube Size (CTS) pipe.

Product Specifications

1 in. Internal Coupling TSD

View all of they physical dimensions of this product by downloading the Technical Specifications document in PDF format.


Product Description

Product Features

Connection Points

Impact Resistant

Increased Strength

UV Resistant

Flow Through

Internal Pipe Fit

FORMUFIT 1 in. Internal Couplings connect two segments of 1 in. Schedule 40 PVC pipe internally, leaving a smooth, flush connection.

  • Fits inside 1" Size Sch. 40 PVC pipe, which has an outside diameter of 1-5/16" (1.315") and an inside diameter of 1".
  • Create 10-foot lengths from our 5-Foot PVC pipe segments, without expensive freight
  • Ideal for break points in larger applications and designs, to help reduce transport size
  • Fluted coupler design fits directly inside of the pipe, so no external element is exposed
  • Connects two Schedule 40 PVC pipes with an almost seamless appearance
  • Flow-through capability to allow wiring or non-plumbing fluid passage
  • Clean, marking-free and embossment-free surface
  • Injection molded as a single unit for higher durability
  • Impact proof; 5x more durable than plumbing grade fittings
  • Sunlight resistant for for outdoor, direct-UV applications
1" Internal PVC Coupling - Furniture Grade has a rating of 5.0 stars based on 4 reviews.


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