FORMUFIT PVC Accessories Guide

Accessories are crucial for versatile, stable PVC projects. They enable customization, mobility, and easy size connections. Mastering them can take your project to the next level.

FORMUFIT External Flat PVC End Cap on pipe

External Flat PVC End Caps

Skillfully engineered to fit seamlessly over the ends of open PVC pipes, these caps provide an elevated, flat surface for additional stability for project feet or foundations. Built with Structural Grade PVC, our flat-top caps not only ensure durability and a prolonged lifespan but also contribute to a sleek, professional finish for all your projects.

  • Perfectly Flat Top
  • Tapered Sockets
  • Available in all PVC sizes
FORMUFIT Internal Dome PVC Cap inside pipe end

Internal Dome PVC Caps

Configured to sit flush within the pipe's open end, this cap gives the pipe a smooth, subtly domed end, perfect for a neat, professional finish. Tailored specifically to fit securely inside Schedule 40 PVC pipes, our PVC Internal Dome Caps guarantee a precise fit when the pipe is cut at a perfect 90 degree angle.

  • Smooth, flush dome end
  • Internal Fit for Schedule 40 pipe
  • Cap fits in fittings when on pipe to create sealed segments
FORMUFIT Internal PVC Ball Cap on 1-1/4 inch pipe

Internal PVC Ball Cap

Fitting snugly inside the end of a Schedule 40 PVC pipe, these caps create a ball-shaped end that is not only functional, but also aesthetically pleasing. The clean, spherical top of Internal Ball Caps introduces a smooth and professional look to your projects.

  • Perfectly rounds out PVC pipe
  • Available in the 1-1/4" size only
  • Internal Fit for Schedule 40 pipe
FORMUFIT PVC Table Screw Cap mounted to a surface

PVC Table Screw Cap

Create unique handrails, tables, and more with PVC Table Screw Caps. These versatile caps are designed to attach the ends of PVC pipes to flat surfaces, enabling you to fasten them to materials such as drywall, wood, or even concrete using screws or other applicable fasteners.

  • Connects PVC pipe to surfaces using fasteners
  • Cap is sealed on the bottom
  • Chamfered holes allow for a clean use of tapered screws
FORMUFIT External PVC Coupler joining two pipe segments

External PVC Coupler

These couplers are meticulously designed to join two segments of PVC pipe inline, allowing for seamless pipe length extensions. They can also serve as breakdown points within your PVC pipe structure or assembly for added flexibility. Engineered to fit over PVC pipes, External Couplings provide a smooth, slightly elevated connection, ensuring an effortless fit and professional appearance for your projects.

  • Connects PVC pipe segments externally
  • Easy identification of breakdown points
  • Slightly tapered ends for a clean transition
FORMUFIT Internal PVC Coupler with almost invisible seam

Internal PVC Coupler

Engineered to connect two Schedule 40 PVC pipe segments internally, this coupling creates an almost invisible seam for a clean, finished look. Internal Couplers allow for the creation of 10-foot (or longer) lengths from our 40-inch or 60-inch PVC pipe segments, avoiding costly freight expenses.

  • Build custom pipe lengths from standard pipe lengths
  • Almost invisible when installed
  • Internal fit inside Schedule 40 pipe
  • Available in the 1/2" to 1-1/4" PVC sizes
FORMUFIT Caster PVC Pipe Cap with wheel attached

Caster PVC Pipe Cap

Designed to tightly slip over the end of a PVC pipe, these caps can accommodate caster stems or axles, making your applications portable and easy to maneuver. Insert a grip-ring stem caster or attach a threaded caster into the Caster Pipe Cap, then press in place over the end of a 1-1/4" PVC pipe. Additionally, these caster pipe caps can be placed at two ends of a pipe and a steel rod can be inserted to create an axle.

  • Used to connect casters to the ends of PVC pipe
  • Can be used with grip-ring post or threaded post with a nut
  • Caster posts must be at least 1-1/2" in length
FORMUFIT Caster PVC Fitting Insert inside a fitting socket

Caster PVC Fitting Insert

These unique fitting inserts are designed to fit inside a PVC fitting and can accommodate readily available post casters, facilitating the creation of transportable PVC pipe structures. Insert or attach a threaded caster into the Caster Fitting Insert, then press the Caster Fitting Insert inside the socket of a 1-1/4" fitting. 

  • Used to connect casters into PVC fittings
  • Can be used with grip-ring post or threaded post with a nut
  • Caster posts must be at least 1-1/2" in length
FORMUFIT Fishmouth PVC Adapter connecting two pipes at a perpendicular angle

Fishmouth PVC Adapter

Designed to allow a perpendicular connection between two PVC pipes of identical size, these adapters eliminate the need for cutting the original pipe. You can achieve a secure connection using fasteners like screws through a small hole in the fishmouth or using PVC cement. Fishmouth fitting adapters also provide additional support for propping up PVC pipes in your projects or serving as a pipe rest when needed.

  • Augment PVC structures without cutting existing pipe
  • Internal fit on the new pipe segment gives a seamless appearance
  • Available in the 1" and 1-1/4" sizes in White, Black and Gray
FORMUFIT PVC Size Adapter connecting 3/4 inch pipe to a 1-1/4 inch fitting

PVC Size Adapter

Designed to connect different PVC sizes within a single project, these adapters let you fit 3/4" pipe inside 1-1/4" fittings, making it easy to combine sizes without redesigning your entire structure.

  • Transitions from 1-1/4" fittings to 3/4" pipe
  • Available in White or Black
Accessory Function Available Sizes Colors/Notes
External Flat End Cap Flat, elevated top for stability on feet or bases All PVC sizes Tapered socket fit
Internal Dome Cap Smooth, flush domed finish inside pipe end Schedule 40 sizes Requires a square 90° pipe cut
Internal Ball Cap Rounded, ball-shaped finish inside pipe end 1-1/4" only Schedule 40 internal fit
Table Screw Cap Mounts pipe ends to flat surfaces with screws All PVC sizes Sealed bottom, chamfered screw holes
External Coupler Joins two pipe segments inline, externally All PVC sizes Marks a visible breakdown point
Internal Coupler Joins two pipe segments inline, internally 1/2" to 1-1/4" Almost invisible seam
Caster Pipe Cap Adds a caster to the end of a pipe 1-1/4" only Caster post must be at least 1-1/2" long
Caster Fitting Insert Adds a caster inside a fitting socket 1-1/4" only Caster post must be at least 1-1/2" long
Fishmouth Adapter Perpendicular pipe connection without cutting 1" and 1-1/4" White, Black, and Gray
PVC Size Adapter Fits smaller pipe inside larger fittings 3/4" pipe into 1-1/4" fittings White or Black

Accessories FAQ.

The Internal PVC Ball Cap is available in the 1-1/4 inch size only, and is designed to fit inside Schedule 40 PVC pipe.

Yes. Internal and External PVC Couplers both join two pipe segments inline. Internal Couplers create an almost invisible seam, while External Couplers create a visible, identifiable breakdown point in the structure.

PVC Table Screw Caps attach the end of a PVC pipe to a flat surface using screws or similar fasteners, and are sealed on the bottom with chamfered holes for a flush screw fit.

A Fishmouth PVC Adapter creates a perpendicular connection between two pipes of the same size without cutting the original pipe. It's available in 1 inch and 1-1/4 inch sizes, in White, Black, and Gray.

Yes. PVC Size Adapters let you fit a smaller pipe size inside a larger fitting, for example, connecting 3/4 inch pipe inside a 1-1/4 inch fitting, so different sizes can be combined within one structure.

Ready to Build?

Now that you know your accessory options, shop the full lineup or browse free plans that put them to use.