Resources
Guides & technical resources
Field-tested guidance from the manufacturer — how to spec, install, and choose conduit fittings, sealing devices, and irrigation swing joints.
Underground Electrical
How to Size a Temporary Conduit Plug
How to choose the right size temporary plug for conduit and innerduct — match the plug to the duct's trade size so it seals the opening before cable is pulled.
Read guideTemporary vs. Permanent Conduit Plugs: Which Do You Need?
The difference between a temporary conduit plug and a permanent duct seal — when a reusable snap-in plug is right, and when a job calls for a permanent sealing method instead.
Read guideA Made-in-USA Alternative to JackMoon Duct Plugs
Innovative Plastics LDPE temporary conduit plugs are an American-made alternative to JackMoon-style duct plugs — snap-in seal with a built-in pull-rope tie, trade sizes 1"–8", sold by the case.
Read guideConduit Duct Bank Spacing: Intervals, Separation, and Cover
How to space conduit in a duct bank — spacer intervals along the run, separation between conduits, and concrete cover for encased and direct-burial installations.
Read guideHow Many Duct Spacers Per 100 ft?
How to estimate duct spacer quantity for a conduit duct bank — spacer sets per 100 ft at 5–10 ft intervals, with a free calculator. Confirm against your project specification.
Read guideA Made-in-USA Alternative to Wunpeece Duct Spacers
Innovative Plastics base, intermediate, and clip duct spacers are an American-made alternative to Wunpeece-style interlocking duct spacers — same job, sizes 1"–8", no banding, in stock by the case.
Read guideHow to Install Conduit Duct Spacers
A step-by-step guide to assembling base and intermediate conduit duct spacers into an aligned duct bank for encased or direct-burial installation — no banding required.
Read guideSchedule 40 vs. Schedule 80 Conduit Caps: How to Choose
How to match a PVC conduit cap to your run — covering Schedule 40, Schedule 80, EB, and DB conduit — so the right cap seals every duct opening by trade size.
Read guideRiser Caps and Mule Tape: Seal a Conduit and Keep the Pull-Line
How riser caps close an open conduit while tying off a mule tape or pull-line inside, so the next crew has a ready pull string months later.
Read guideIrrigation
What Is Funny Pipe (Swing Pipe)?
Funny pipe (swing pipe) is flexible LDPE tubing that connects a sprinkler head to the lateral line, bending around obstacles and absorbing impact without restricting flow.
Read guideHow to Build a Swing Joint On Site
A field guide to assembling a custom sprinkler swing joint from funny pipe, insert fittings, and a Marlex street ell to set any head to exact height and angle.
Read guideSwing Joint vs. Funny Pipe: What's the Difference?
Swing joint vs. funny pipe explained — funny pipe is the flexible tubing, a swing joint is the finished assembly it builds. When to buy a pre-made swing joint and when to build your own from a coil.
Read guideAre Innovative Plastics Swing Joints Compatible with Rain Bird?
Innovative Plastics swing joint assemblies and ½" swing pipe are dimensionally compatible with the Rain Bird SA series and SPX-FLEX / SWGP swing pipe.
Read guideSwing Pipe That Fits Toro Funny Pipe Systems
Innovative Plastics ½" swing pipe (.690" OD × .490" ID) is dimensionally compatible with standard funny-pipe insert fittings used on Toro Funny Pipe systems. 100 ft coils, made in Texas.
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