Description
Splice Netafim Techline dripline in the field without clamps, glue, or a tool box full of fittings. The TLCOUP is the OEM Netafim insert coupling for 17mm Techline tubing — barbed inlet on each end, one-piece molded body, push the cut ends of the dripline onto the barbs and the job is done. Designed specifically for the 0.56″–0.60″ ID range that Netafim’s 17mm Techline dripline runs in, so the seal is dialed in for that exact tubing instead of a generic 1/2″ barb that fits four sizes badly.
Why Netafim Is the Right Match
- OEM Netafim — the same brand as your Techline dripline, so the barb-to-ID fit is engineered, not approximated
- 17mm sized for Netafim Techline HCVXR, HCVXR-RW/RWP, CV, DL, and RW/RWP driplines, plus generic 17mm PE irrigation hose in the 0.56–0.60″ ID range
- Barbed fitting — secure fit and easy installation, no clamps, no glue, no tools
- UV resistant — survives direct sun and the chemistry of irrigation water (chlorinated supply, fertigation, etc.)
- One-piece construction — no joints, no glued seams, nothing to come apart underground in year five
- Allows for easy on-site inspection — you can see whether the dripline is fully home on the barb without disassembly
Where It Shines
- Splicing a buried Techline run that got cut by a shovel, gopher, or aerator tine
- Joining two partial reels of 17mm Techline into one continuous loop or grid
- Extending an existing dripline zone — one coupling per tube end
- Service-call patches on a customer’s drip system — cut, push, walk away
- Test-bed and demo installs where you’ll re-route the dripline later (no glue to fight)
Specifications
- Model: TLCOUP
- Sizing: 17mm — fits 0.56″ to 0.60″ inside diameter dripline
- Compatible with: Netafim Techline HCVXR, HCVXR-RW/RWP, CV, DL, RW/RWP, and 17mm PE irrigation hose in the 0.56–0.60″ ID range
- Geometry: Inline (straight-through) two-port coupling
- Connection: Barbed insert — tool-free push-fit, no clamps required
- Construction: One-piece molded plastic, UV-resistant
- Use: Buried or surface, residential / commercial drip irrigation
- Approximate weight: 1 lb per pack
- Origin: Netafim USA
Install Notes
- Cut the dripline square with a sharp knife or PE pipe cutter (a ragged cut won’t seal)
- Push each tubing end onto the barb fully — the last barb ridge should be inside the tubing
- No clamp required — the barb design seals against the dripline ID once the tubing is fully home
- Pressure-test before backfilling, especially on long runs where one weak coupling drops the whole zone
- Shut the zone off at the valve before cutting into a pressurized line
- For 12mm Techline EZ — this is the wrong size; use Netafim Model T12COUP instead
Pair With
For tee/branch connections in 17mm Techline, look at the Netafim TLTEE (insert tee), TLELL (insert elbow), and TLCROS (insert cross). For threaded transitions to 1/2″ or 3/4″ MPT supply lines, the TL050MA and TL075MA adapters.
Stop by Garoppo’s for the count you need, or order ahead for the next install.






