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The PVC Slip x Slip Coupler is the fundamental building block for any PVC irrigation system. Designed with two female socket ends, this fitting connects two pieces of Schedule 40 PVC pipe of the same size in a straight line. Whether you are running a new main water line to your garden or repairing a cracked section of pipe, this coupler ensures a seamless, high-flow connection.
Reliability is critical in underground applications, which is why professionals trust these essential irrigation fittings. Unlike compression fittings that can slip under pressure spikes, a solvent-welded PVC coupler effectively turns two pipes into one continuous unit, offering superior durability against soil shifting and water hammer in your irrigation system.
Key specifications for system planning and parts matching.
| Specification | Details |
|---|---|
| Product Type | Coupling / Pipe Connector |
| Connection Style | Slip x Slip (Requires Solvent Weld) |
| Material | Schedule 40 PVC (White) |
| Max Temperature | 140° F (Do not use with compressed air/gas) |
| Industry Standards | ASTM D-2466, NSF-PW |
| Manufacturer | Dura Plastics |
| MPN (1/2") | 429-005 |
| MPN (3/4") | 429-007 |
| MPN (1") | 429-010 |
| MPN (1 1/4") | 429-012 |
| MPN (1 1/2") | 429-015 |
| MPN (2") | 429-020 |
A successful connection depends on proper preparation.
Step 1: Cut and Clean
Cut your PVC pipe squarely using a pipe cutter. Remove any burrs or shavings from the cut end to ensure it sits flush against the coupler's internal stop.
Step 2: Dry Fit
Insert the pipe into the coupler to check fitment. It should go in about 1/3 to 2/3 of the way before meeting resistance. This interference fit is normal.
Step 3: Apply Primer
Apply purple primer to the outside of the pipe end and the inside of the coupler socket. This softens the plastic for bonding.
Step 4: Glue and Hold
While the primer is wet, apply a coat of PVC cement to both surfaces. Push the pipe fully into the coupler with a quarter-twist to spread the glue. Hold firmly for 30 seconds to prevent "push-out."
Verify your pipe size:
Ensure a professional installation with these essential tools and parts:
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