Hydroponic Cross Pipe Fittings. 4-Way Irrigation Connectors for Nutrient Distribution (4mm to 25mm)

Hydroponic cross pipe fittings designed for multi-directional nutrient and water distribution in irrigation systems. These 4-way connectors allow efficient branching of flow lines in hydroponic, aquaponic, and drip irrigation setups, improving system scalability and flow control across all connected plant sites.

Available in four sizes with bulk pack formats, they provide stable, leak-resistant junctions for precision irrigation networks from micro drip lines through to commercial mainline distribution systems.

Available Sizes and Pack Formats

4mm Cross Fitting (Pack of 50). Precision micro irrigation systems, seedling propagation, and individual plant drip line branching. The 50-unit pack supports complete multi-site drip system builds in a single order.
13mm Cross Fitting (Pack of 20). Standard hydroponic irrigation systems, grow tents, and medium-flow nutrient distribution lines. The most commonly used size for general hydroponic system builds.
19mm Cross Fitting (Pack of 20). Medium to large hydroponic systems requiring balanced nutrient distribution across multiple zones. Suited to greenhouse and recirculating system mainlines.
25mm Poly Cross Fitting (Pack of 20). Commercial hydroponic irrigation networks, greenhouse mainlines, and high-volume nutrient distribution systems requiring maximum flow capacity.

Key Benefits

Multi-Directional Cross Flow Design. 4-way connector allows flow branching in any direction, enabling flexible system layout without additional tees or elbows.
Secure Push-Fit Compatibility. Compatible with standard hydroponic tubing for fast, tool-free installation and repositioning.
Leak-Resistant Connection Geometry. Engineered sealing surfaces maintain reliable junctions under continuous low-pressure nutrient flow.
UV and Moisture Resistant Polymer. Stable performance in indoor and greenhouse environments under continuous nutrient solution exposure.
Modular System Expansion. Cross fitting design allows existing irrigation lines to be branched and extended without system shutdown or full replumbing.
Bulk Pack Format. High unit counts per pack reduce reorder frequency and support complete system builds in a single purchase.

System Features

4-way cross flow design for multi-directional irrigation branching
Push-fit compatibility with standard hydroponic tubing diameters
Leak-resistant connection geometry for continuous nutrient flow
UV and moisture resistant hydroponic-grade polymer construction
Suitable for low-pressure nutrient delivery systems
Bulk pack format for complete system builds and commercial installations

Applications

Drip Irrigation Systems (Run-to-Waste and Recirculating)
Micro Irrigation and Precision Nutrient Dosing
Seedling Propagation and Cloning Systems
Recirculating Hydroponic Systems
Ebb and Flow (Flood and Drain)
Greenhouse Irrigation Networks
Commercial Hydroponic Mainline Distribution
Aquaponic System Plumbing

Size Selection Guide

4mm (Pack of 50). Micro drip lines, emitter feeds, individual plant branching.
13mm (Pack of 20). Standard grow tent and reservoir distribution lines.
19mm (Pack of 20). Medium-volume zone distribution and greenhouse feeds.
25mm (Pack of 20). Commercial mainline branching and high-volume nutrient networks.

What Sets It Apart

Standard tee fittings only allow 3-way branching, requiring two fittings and additional tubing to achieve the same result as a single cross fitting. For growers building multi-zone irrigation networks or commercial systems with multiple distribution points, cross fittings reduce component count, simplify layout, and lower installation time. The bulk pack format on all four sizes means a complete system can be fully fitted in a single order without the per-unit cost premium of small quantity purchases. The four size options cover every standard hydroponic tubing diameter from 4mm micro drip lines through to 25mm commercial mainlines, making this a complete fitting solution for any system scale.

Technical Specifications

Function. 4-Way Irrigation Distribution Connector
Available Sizes. 4mm (Pack of 50), 13mm (Pack of 20), 19mm (Pack of 20), 25mm (Pack of 20)
Material. Hydroponic-Grade UV Resistant Polymer
Connection Type. Push-Fit
Pressure Rating. Low-Pressure Hydroponic Systems
Application. Irrigation and Nutrient Distribution Systems
Use Case. Drip Systems, Greenhouse Mainlines, Commercial Builds
Shipping Weight. Varies by size and pack

Frequently Asked Questions

What size fittings do I need for Hydroponic Cross Pipe Fittings?

Hydroponic irrigation fittings are sized by internal diameter — common sizes are 4mm, 13mm (½"), 19mm (¾"), and 25mm (1"). Match fittings to your existing tubing or pump outlet diameter. When in doubt, 13mm is the most common size for standard hydroponic systems and is compatible with most pumps and mainline tubing in the 300–2000 L/hr flow rate range.

How do I prevent leaks with Hydroponic Cross Pipe Fittings?

Push-fit barbed fittings should be inserted firmly until they bottom out against the shoulder. Soft poly tubing grips barbs securely without clamps for most low-pressure applications. For higher-pressure or constant-run systems, add hose clamps over the barb connection for a leak-free seal. Always pressure-test your system for 30 minutes before introducing plants.

Does Hydroponic Cross Pipe Fittings ship fast within Australia?

Yes — Hydroponic Cross Pipe Fittings ships from our Australian warehouse with fast tracked delivery Australia-wide. Most east coast orders arrive within 2–5 business days. WA, NT, and TAS orders typically arrive within 5–12 business days.