FAQ

Frequently asked questions

Materials, sizes, applications, and installation for our conduit plugs, duct spacers, and caps.

Ordering, pricing & shipping

How do I order?
Browse the catalog and use the Add button on any product's spec table to build a quote list, then submit it from the Quote page. We'll review it and email you an invoice to confirm pricing, shipping, and availability.
How do I pay?
After we confirm your request we email an invoice payable by credit card or ACH. No payment is taken on this website.
Is there a minimum order?
Yes — the minimum order is one case per item. Case quantities are listed in each product's spec table.
Are the prices shown final?
Prices are in USD and indicative — they exclude shipping and applicable tax and are confirmed on your invoice. Volume and distributor pricing may be available on request.
How much is shipping?
Shipping is quoted per order because weight and destination vary. We confirm freight on your invoice. See our Shipping Policy for details.
Can I return an order?
Unused product in original packaging may be returned within 30 days with a return authorization. See our Returns & Refunds Policy.

Temporary Plugs

What are temporary conduit plugs made of?
They are molded from low-density polyethylene (LDPE) — a semi-pliable, high-impact, chemically inert material with very low moisture absorption that resists UV light, ozone, and wide temperature swings.
What conduit sizes do temporary plugs fit?
Twelve trade sizes from 1" (25 mm) to 8" (200 mm), covering standard duct and innerduct.
How do the plugs stay in place and come back out?
Tapered, scalloped ridges form a snap-in seal that resists accidental dislodging, while a flanged lip at the base makes removal easy.
Can you pull a line through later?
Yes — every plug has a built-in rope-tie so you can attach mule tape or pull-line for future access.
Are they suitable for underground and outdoor use?
Yes. LDPE's UV, ozone, and temperature resistance make these plugs well suited to demanding underground and outdoor environments.

Base & Intermediate

What is a duct spacer used for?
Conduit duct spacers position and support duct arrays in a trench before encasement or backfill, holding consistent horizontal and vertical separation between conduits.
What duct sizes and separations do base and intermediate spacers cover?
Eighteen sizes accommodate duct diameters from 2" (50 mm) to 8" (200 mm) with separation distances from 1.5" (40 mm) to 3" (80 mm).
How do base and intermediate spacers differ?
Base spacers sit on the trench floor as the bottom course; intermediate spacers stack and interlock above them to build additional layers of the duct bank.
Do the spacers need banding?
No. The two-piece design interlocks vertically and horizontally for fast, secure field assembly with no banding required, and stays in place under worker weight and during backfill.
Can they be pre-assembled?
Yes — pre-assembled configurations are available on request.

Clip Spacers

What is a conduit clip spacer?
A snap-in clip spacer organizes and holds HDPE or PVC conduit at fixed spacing in both exposed and underground installations, fed directly from the reel or cut to length.
What configurations and sizes are available?
4-way and 6-way configurations accommodating conduit from 1" (25 mm) to 2" (50 mm).
What material are clip spacers made from?
ABS resin, which is warp-resistant and durable for a long service life.
How long do they take to install?
They snap in within seconds — no tools or banding required.

PVC End Caps

What is a PVC conduit end cap?
A PVC end cap is an injection-molded high-impact PVC cover that seals the open end of a conduit to keep out water, dirt, and debris during and after installation.
What conduit types and sizes do the end caps fit?
Eleven sizes from ½" (15 mm) to 6" (150 mm), fitting Schedule 40 & 80 and EB and DB conduit.
Are PVC end caps suitable for direct burial?
Yes — they are designed for both encased and direct-burial applications.
Do they require tools to install?
No. They install in seconds with no tools required, and the warp-resistant design keeps a consistent fit.

Riser Caps

What is a conduit riser cap?
A riser cap is a high-impact PVC conduit cap with a rope-tie loop on the underside, used to close a conduit opening while allowing mule tape or a pull-line to be tied off for future access.
How is a riser cap different from a standard end cap?
Both seal a conduit opening, but the riser cap adds an underside rope-tie loop for mule tape, making it ideal for stub-ups and risers where a line is pulled later.
What sizes do riser caps come in?
Sizes from 1.5" (40 mm) to 6" (150 mm), fitting Schedule 40 & 80 and EB and DB conduit.
What are riser caps made of?
Injection-molded high-impact PVC for a consistent, repeatable fit and durable, warp-resistant performance.

Swing Joint Assemblies

What is an irrigation swing joint used for?
A swing joint is a flexible connection between the buried lateral pipe and a sprinkler head. It lets you set the head to the correct height and angle, makes future adjustments easy, and absorbs shock from mowers, foot traffic, and vehicles so the lateral pipe and fittings are protected.
What sizes and lengths are available?
Assemblies are offered with 6" or 12" of flexible LDPE tubing in ½" and ¾" inlet/outlet sizes and their combinations (½"×½", ½"×¾", and ¾"×¾").
What does the "X3" in the part number mean?
Standard assemblies use one Marlex street ell; "X3" assemblies (e.g. 1106-55X3) are built with three Marlex street ells for additional articulation where more positioning flexibility is needed.
What are the assemblies made of?
Each assembly combines heavy-duty LDPE flexible tubing, Celcon M90 funny-pipe fittings, and a Marlex HDPE street ell. These materials form a leak-free connection and stand up to long-term underground service.
Are these compatible with other brands of swing pipe?
Yes. They serve the same purpose as common swing-pipe assemblies such as the Rain Bird SA series (for example SA5, SA65, and SA125050) and use standard ½" and ¾" pipe threads.

Male Elbows 90°

What sizes do the 90° male elbows come in?
Two sizes — ½" (part 1300-05) and ¾" (part 1300-07).
How are the male elbows packaged?
They are sold by the case — 1,500 per case for the ½" elbow and 1,000 per case for the ¾" elbow.
Where are these elbows used?
They make a 90° turn on irrigation lateral lines, risers, and sprinkler connections wherever a male-thread elbow is needed.

Male Adapters (Black PVC)

What are the male adapters made of?
They are molded in durable black PVC for long-term underground and outdoor irrigation service.
What sizes are available?
Two sizes — ½" (part 1310-05) and ¾" (part 1310-07), each sold 500 per case.
What is a male adapter used for?
A male adapter transitions irrigation pipe to a male threaded connection so it can thread into valves, fittings, or risers.

Marlex Street Ells

What is a Marlex street ell?
It is a 90° street elbow molded from Marlex HDPE with a male thread on one end and a female thread on the other. The self-lubricating material makes a leak-free connection that assembles easily and lasts.
What size is offered?
The ½" Marlex street ell (part 1412-05) is stocked 500 per case.
Why use Marlex instead of PVC for a street ell?
Marlex HDPE is self-lubricating and impact resistant, which is why it is the preferred fitting for swing joints and riser connections that need a reliable, leak-free seal under stress.

Poly Cut-Off Risers

What is a poly cut-off riser?
It is a threaded polyethylene riser molded with stepped sections so you can cut it down to set a sprinkler head at the exact height you need.
What size is offered?
The ½" × 6" riser (part 1500-60) is stocked 500 per case.
Why use a cut-off riser instead of a fixed nipple?
A cut-off riser lets one part cover many heights — you trim it on site to match grade — instead of stocking a separate fixed nipple for every height.

Swing Pipe Coil (Funny Pipe)

What is swing pipe (funny pipe)?
Swing pipe — commonly called funny pipe — is flexible LDPE tubing used to connect a lateral line to a sprinkler head. It bends at sharp angles without disrupting flow, so you can position heads precisely and absorb impact.
What are the dimensions of the coil?
The coil is 100 feet of ½" tubing measuring approximately .690" outside diameter by .490" inside diameter, which pairs with standard funny-pipe fittings and Marlex street ells.
Why buy the coil instead of pre-made swing joints?
Buying the coil plus funny-pipe fittings and Marlex ells lets you assemble swing joints to any length on site, which is often more economical and flexible than stocking fixed assemblies.
Is this compatible with other brands of swing pipe?
Yes. It serves the same purpose as common swing-pipe coils such as Rain Bird SPX-FLEX-100 / SWGP100 and works with standard funny-pipe insert fittings.

Butt Fusion Service Saddles (Rectangle Base)

What is a butt fusion service saddle?
A molded HDPE fitting with a curved base that is heat-fused onto the outside wall of an HDPE pipe, creating a permanent branch outlet. The ½" FNPT female thread accepts a threaded drop, riser, or diffuser connection.
How is the saddle installed?
With standard butt-fusion tooling — heat the saddle base and the pipe crown, then press them together and hold until the joint cools. The fused saddle becomes a monolithic part of the pipe wall, with no clamps, gaskets, or electrofusion processor required.
What pipe sizes are available?
Four sizes fitting 4", 6", 8", and 10" HDPE pipe, all with a ½" FNPT outlet and a rectangle fusion base.
What are these saddles used for?
They are the standard lateral tap in HDPE aeration systems — connecting diffuser drops to air-header laterals in wastewater lagoons and pond aeration — and serve as general-purpose small service taps on HDPE pipelines.
How is this different from an electrofusion saddle?
An electrofusion saddle contains embedded heating wire and needs an electrofusion processor to install. A butt fusion saddle joins with ordinary butt-fusion heating tools, making it simpler and more economical where fusion equipment is already on site.
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