19mm Standard Irrigation Fittings — Polypropylene Barbed Connectors for DIY Drip Systems
Best for: Growers building or expanding custom drip irrigation systems without buying a complete pre-packaged kit
Our thoughts
If you're piecing together your own irrigation setup, these 19mm barbed fittings are exactly what you need. No tools, no faffing, just push them onto your pipework and you're done. Modular, reliable, and dead cheap. One we sell a lot of to growers building systems their own way.
19mm Standard Irrigation Fittings are polypropylene barbed connectors designed to work with 19mm internal diameter pipework. Built for low-pressure hydroponic and drip irrigation systems, they give you the core components to build, expand, or modify your nutrient delivery setup without the cost of buying a complete kit. No tools required — just warm the pipe slightly, push it over the barbed fitting, and let it cool for a rock-solid seal.
How it compares
19mm sits in the mid-range of irrigation pipe sizes, balancing flow rate and versatility.
- Larger than 13mm (more flow, better for bigger systems)
- Smaller than 25mm (less overkill for compact or modular setups)
- Standard barbed design is simple and affordable compared to premium lock-type fittings
- Works with readily available LDPE pipework — no proprietary systems
- Individual fittings start at under 50p, letting you buy only what you need
You're getting a proper modular system, not a bargain-bin alternative. Just straightforward components at sensible prices.
Usage guidance
19mm barbed fittings work across different irrigation applications:
Building a drip system from scratch
Connect your main pipework using tees to split flow, elbows to route around corners, and end caps or valves to control sections. Plug together exactly how you need it.
Installation method
Warm the end of your 19mm LDPE pipe in warm water for about 10 seconds to soften it slightly. Push it firmly onto the barbed fitting end. Once cooled, the pipe contracts and locks solid. For high-pressure runs or absolute certainty, secure with jubilee clips.
Expanding an existing system
Add new branches, runners, or drip lines without replacing your whole setup. Buy the connectors you need, slot them in, done.
Component types available
This range includes tee pieces (split flow), elbows (directional changes), joiners (connect two pipe lengths), in-line valves (isolate sections or regulate flow), end stops (cap off runs), in-line filters (prevent blockages), non-return valves (stop backflow), and reducers (drop down to 13mm where needed).
Technical specifications
- Pipe size: 19mm internal diameter, 25mm external diameter
- Material: High-quality polypropylene
- Connection type: Barbed (push-fit, no tools)
- Pressure rating: Maximum 300kPa (low-pressure systems)
- Pipe compatibility: Low Density Polyethylene (LDPE) 19mm ID
- Installation: Push-fit over barb; secure with jubilee clips for high-pressure
- Applications: Drip irrigation, hydroponic nutrient delivery, indoor and outdoor watering
Who this is for
- Growers building their first custom drip system on a budget
- Experienced growers expanding or modifying existing setups
- Anyone who wants modular flexibility instead of locked-in pre-built kits
- Growers running multiple rooms or zones who need to patch and adapt regularly
- DIY enthusiasts who prefer hands-on system design without complexity
Particularly well suited to growers who think differently about their setup each season and don't want to buy a new system every time.
Our take
These are the building blocks of a proper, customised irrigation system. Cheap to buy individually, simple to install, and they do exactly what they should without faffing about with tools or proprietary connectors.
If you're planning to build a drip system your own way, or you need to add branches or repair runs on an existing setup, worth picking up a selection while stock lasts. Nothing fancy, everything practical.
