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Close-up of grey poly insert reducing coupling (barb x reducing barb), size 1-1/4" x 1", shown on white background for product listing.

Insert Reducing Coupling 1-1/4" x 1" — Barb Insert Poly

Brand: PVC
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$3.82
$2.87
SKU 1429168
In Stock (609)

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Durable insert reducing coupling designed for joining polyethylene and flexible irrigation tubing. This barb-style insert coupling reduces from 1-1/4" to 1", creating a secure, straight-line connection for drip, sprinkler, and low-pressure water lines. Engineered for corrosion resistance and reliable field performance, it’s an essential fitting for residential and commercial irrigation installs.

  • Size: 1-1/4" x 1" (insert x insert) — fits common poly tubing sizes.
  • Material: Poly/PVC-compatible construction for corrosion resistance and long service life.
  • Connection: Barb x reducing barb design for a tight hose-clamp attachment.
  • Compatibility: Works with polyethylene, PVC, vinyl and rubber tubing when used with clamps.
  • Applications: Ideal for drip irrigation, sprinkler lines, valve hookups, and general low-pressure water distribution systems.
  • Installation: Insert tubing fully over barbs and secure with recommended stainless or galvanized hose clamps; inspect for proper seating before backfilling.

Manufactured to common industry standards for insert fittings, this compact reducing coupling offers straightforward installation and dependable performance underground or above grade. Check the part SKU 1429168 for ordering and verify pressure ratings on the product packaging or technical datasheet when used in specialized systems.

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Frequently Asked Questions

What tubing sizes does this coupling fit?
This reducing coupling fits 1-1/4" to 1" poly tubing (insert x insert). Confirm tubing outer diameter before installation.
How do I install the barb insert coupling?
Push tubing fully onto the barbs and secure with a stainless or galvanized hose clamp. Inspect the seating before pressurizing.
Is this fitting suitable for underground use?
Yes—these poly insert couplings are commonly used underground for irrigation. Use clamps and bury per local codes.
What material is the coupling made from?
The coupling is poly/PVC-compatible material designed for corrosion resistance and compatibility with polyethylene tubing.