

1/4-in Vinyl Barb x Barb Coup QT100
Product Overview
Missing a simple connection during a mid-summer drip installation can stall an entire crew and leave delicate plant material at risk of heat stress. When these small but essential 1/4 inch vinyl barbs are out of stock during the peak of the irrigation season, project deadlines slip and your labor costs rise as techs make emergency trips to find parts. With supply chain volatility affecting small diameter fittings, securing your inventory now prevents the frustration of back-ordered components during your busiest months. Establishing a reliable stock of connectors ensures your drip systems remain operational and your client schedules stay on track despite the late spring rush.
The Mister Landscaper QT100 series offers a superior grip compared to standard economy fittings that often slip under pressure or heat expansion. These vinyl barbs are engineered with a sharp, tapered profile that bites into the tubing wall, creating a permanent seal without the need for glue or secondary clamps. By reducing the frequency of blowouts and service calls, you save significant maintenance hours over the life of the system. Investing in professional-grade connectors allows your crews to work faster and provides the technical reliability required to maintain a competitive edge in high-end residential and commercial landscape maintenance.
Product Specifications
| Specification | Detail |
|---|---|
| Material | High-Density Vinyl Polymer |
| Connection Type | Double Barb (Barb x Barb) |
| Size | 1/4 Inch Nominal |
| Pressure Rating | Up to 50 PSI |
| Color | Black |
| Manufacturer | Mister Landscaper |
| Model Number | QT100 |
Available Models & Sizes
The QT100 is the industry standard 1/4 inch coupling for vinyl and poly micro-tubing; however, we also carry a full range of tees, elbows, and adapters in the same material family. Please contact our sales desk for bulk pack pricing or to discuss specific configurations for large-scale nursery and greenhouse layouts.
Key Features
- High-tapered barb design creates a leak-proof friction fit with standard 1/4 inch micro-tubing.
- UV-resistant vinyl construction prevents brittleness and cracking when exposed to direct sunlight.
- Single-piece molded body eliminates internal weak points and seam failures under pressure.
- Smooth internal bore minimizes friction loss to maintain consistent flow across long drip runs.
- Compatible with both vinyl and polyethylene tubing for maximum versatility on different job sites.
- Ergonomic shape allows for easy hand-press installation, reducing hand fatigue for your installation crews.
Common Applications
- Residential lawn and garden systems
- Greenhouse and nursery operations
- Commercial landscape irrigation
- High-density crop irrigation
- Municipal parks and public spaces
- Potted plant and hanging basket fertigation
Installation Notes
For the most secure connection, ensure the micro-tubing is cut square using a dedicated tube cutter. In cooler temperatures, dipping the ends of the tubing in warm water will soften the material and allow the barb to seat fully against the center stop. Push the tubing over the barb until it meets the middle flange to ensure the secondary barb is fully engaged. Always verify regional plumbing codes for drip irrigation backflow requirements before finalizing the connection to the main lateral line.
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