Heavy-Duty Black Poly Tubing – 4mm Precision Micro-Irrigation (250m Bulk Roll)
Estimated delivery: 5 - 15 Business Days.
+5 days for regional locations on average [More Info]
Heavy-Duty Black Poly Tubing – 4mm Precision Micro-Irrigation (250m Bulk Roll)
For large-scale facilities and precision-focused growers, consistent nutrient delivery is non-negotiable. Our Heavy-Duty Black 4mm Poly Tubing is the professional standard for "spaghetti" feeder lines, offering a high-performance solution for individual plant irrigation. This massive 250-metre bulk roll is designed to connect main distribution manifolds directly to micro-drippers, stakes, and emitters. The opaque black construction is engineered to be 100% light-proof, preventing the algae growth that is the primary cause of blockages in small-diameter lines. By ensuring your micro-lines remain clean and clear, you guarantee that every plant receives the exact volume of nutrients required for a uniform, high-yielding harvest.
Best For: Large-scale micro-drip installations, connecting individual dripper stakes, precision fertigation in commercial facilities, and high-pot-count hydroponic systems.
Key Features
- Commercial Bulk Value: The 250-metre roll is the most cost-effective choice for large-scale operations, providing enough length for hundreds of plant sites with minimal joins and zero wasted material.
- Total Light Blockage: Deep black pigmentation ensures zero light penetration, halting algae blooms in their tracks and protecting your emitters from the bio-film build-up that leads to crop-damaging blockages.
- Ultra-Flexible Pliability: Specifically formulated for micro-irrigation, this tubing navigates complex plant layouts and tight corners without kinking, ensuring an unobstructed flow of vital nutrient solution.
- UV-Stabilised Longevity: Manufactured from premium-grade polyethylene built to endure the extreme radiation and heat of professional LED and HPS lighting environments without cracking or becoming brittle.
- Universal 4mm Compatibility: Precision-engineered to fit all standard 4mm barbed micro-fittings, "take-off" joiners, and pressure-compensating (PC) drippers for a secure, leak-free seal.
- Inert & Nutrient Safe: Constructed from high-quality LDPE that will not react with concentrated mineral salts or pH adjusters, maintaining the chemical integrity of your feed.
Specifications
- Diameter: 4mm (Internal Diameter)
- Material: Low-Density Polyethylene (LDPE)
- Colour: Opaque Black (Light-Proof)
- Length: 250 Metre Commercial Bulk Roll
- Application: Precision Micro-Drip and Fertigation Systems
Installation & Maintenance Tips
- Soft-Seal Technique: For a faster and more secure installation onto barbed fittings, dip the end of the 4mm tubing in warm water for a few seconds to increase flexibility before pushing it into place.
- Uniform Delivery: To ensure every plant receives the same amount of water, try to keep your 4mm feeder lines as close to the same length as possible across your entire manifold.
- Clean Cuts: Use a dedicated tube cutter or a sharp blade to achieve a perfectly square cut. This ensures the tubing seats fully against the fitting barb, preventing leaks under high pump pressure.
Ideal For (Uses)
- Commercial Fertigation: The primary feeder line for rockwool, coco-coir, and perlite-based commercial grow rooms.
- Drip Stake Connections: Connecting 13mm, 19mm, or 25mm main supply lines to individual plant sites.
- Precision Misting: Suitable for low-flow propagation systems and specialized aeroponic cloning setups.
Oversized Item Delivery Options
Oversized, heavy, and structural goods ship via specialist freight. Freight is calculated at checkout from estimated packaged volumetric or physical weight. Carrier depot audits may adjust the rate — if the increase exceeds 10%, we will contact you before processing.
Available options include:
✔ Delivery to your closest depot for pickup — default method
✔ Direct delivery — requires an operational forklift on site unless Tailgate Delivery has been specifically requested and quoted (contact us — this cannot be selected at checkout)
✔ Tailgate hydraulic lift delivery — must be specifically requested; contact us for a quote (not available as a checkout option; extra fees apply; required if you do not have a forklift)
✔ Forklift loading at our warehouse (no extra charge if you arrange your own freight)
✔ Direct truck delivery (available in Victoria)
Important Notes:
- Shipping costs vary by location and method
- Any carton or consignment over 25–30kg (or over 200cm) must be palletised
- Without a specifically requested and paid Tailgate Delivery quote, palletised freight requires a forklift on site — otherwise the carrier will redirect to the nearest depot
- Bulky and oversized items cannot be delivered to a PO Box — provide a physical street address
- Failed deliveries, locked gates, unattended sites, or incorrect business/forklift declarations may incur carrier redelivery, demurrage, and restocking fees as set out in our Terms & Conditions
Business Delivery:
- Selecting a business/commercial delivery rate warrants that the address has an operational forklift and certified operator during business hours
- If the carrier cannot unload, the consignment may be redirected to a depot and secondary fees may apply
- Additional fees may apply for failed delivery attempts due to lack of appropriate unloading equipment
See our Terms & Conditions (Article 8) for full freight and delivery rules.
Important Note on Availability & Shipping
Our warehouse is a logistics hub, not a retail showroom. Listing a product online does not mean it is stored at our Thomastown warehouse — many lines ship from supplier hubs (split fulfilment may apply).
How lead times work:
- Product page ETA: The Estimated Time of Arrival (ETA) / lead-time badge shown on the product page at checkout is the agreed delivery timeframe for that order under Australian Consumer Law.
- Metro baselines: Advertised ETAs apply to standard metropolitan zones. Regional and remote addresses may take longer and may attract surcharges.
- Peak seasons: Orders in March–May, August–October, EOFY (June), Black Friday/Cyber Monday (November), and Christmas/New Year (December–January) may automatically add a 2–4 week buffer beyond the product page ETA.
- Supplier-dependent / backordered items: If stock is delayed, we will notify you with a revised ETA. You then have 7 days to accept the new timeframe or cancel for a full refund.
- Adloheat: Custom-made products from Adloheat (Pakenham, VIC) may take 4–12 weeks depending on the order.
Full fulfilment, cancellation, and freight rules are in our Terms & Conditions.
Biosecurity & Interstate Shipping Restrictions
Due to strict state biosecurity regulations, we are unable to ship some products to certain states and territories:
- Potting Mixes cannot be shipped to Western Australia (WA), the Northern Territory (NT), or Tasmania (TAS).
- Seeds cannot be shipped to Western Australia (WA).
Orders placed for these items to restricted states will be cancelled and refunded. It is the customer's responsibility to ensure that the items being ordered can lawfully be delivered to their state or territory.
We Offer the Best Prices
We are committed to offering competitive market rates. If you find an identical, currently stocked product advertised at a lower price by an authorised Australian competitor, contact us before purchase and we will review your request.
Price Match Conditions:
- The competitor must be a registered Australian business (active ABN) with a physical trading address or verified commercial presence in Australia
- The item must be identical in brand, model, SKU, gauge, dimensions, and specifications
- The lower price must be publicly advertised in AUD, currently active, and available for immediate purchase
- Excludes liquidation, clearance, closeouts, damaged goods, and discontinued lines
- Excludes overseas marketplaces and aggregators including Temu, AliExpress, eBay auction sellers, and Amazon third-party sellers
- Excludes trade quotes, bulk discounts, and custom negotiated quotes not publicly visible
- Requests must be made in writing before purchase
How to Request a Price Match:
Email [email protected] with a live link or official quote. We reserve sole discretion to verify and approve price match adjustments. See Article 6.7 of our Terms & Conditions.
Pricing Errors & 105% Store Credit
If a displayed price is incorrect due to a website error or an extraordinary supplier increase, we will contact you before processing. You may proceed at the corrected price, choose an alternative, or cancel for a full cash refund. A 105% store credit may be offered as a courtesy bonus at our sole discretion only. It is not an entitlement, and we may refuse it if we believe it is being abused or sought in bad faith. Full details: Terms & Conditions Article 6.1.
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