Tub Outlet Extension – Modular Flood Height Adjuster (Bag of 10)
Estimated delivery: 5 - 15 Business Days.
+5 days for regional locations on average [More Info]
Tub Outlet Extension – Modular Flood Height Adjuster (Bag of 10)
Customise your hydroponic system's drainage and flood levels with precision using the Tub Outlet Extension. Designed as a modular addition to standard flood and drain bulkhead fittings, these extensions allow you to control exactly how much nutrient solution remains in your tray or reservoir. By simply pressing the extension into your existing outlet and topping it with a protective screen, you can raise the overflow point to suit your specific root zone requirements. Whether you are managing a shallow propagation tray or a deep-water ebb and flow system, these extensions provide a simple, leak-free way to fine-tune your garden’s irrigation dynamics.
Best For: Customising flood heights in Ebb & Flow systems, setting minimum drainage levels in reservoirs, and modular height adjustments for deep grow trays.
Key Features
- Modular Stackable Design: Engineered for versatility, these extensions can be used individually or stacked together, allowing you to reach any desired flood height without the need for permanent modifications.
- Precision Level Control: Ideal for "setting" the depth of your nutrient solution, ensuring that your medium stays hydrated at the optimal level while preventing over-saturation or accidental dry-outs.
- Friction-Fit Installation: Designed for a secure, tool-free installation; simply press the extension into your tub outlet for a firm hold that remains watertight under standard system pressures.
- UV-Stabilised Durability: Manufactured from high-quality, horticultural-grade plastic that resists the intense UV radiation of grow lights and the corrosive nature of concentrated mineral salts.
- Universal Compatibility: Specifically designed to fit standard SeaHawk and similar hydroponic tub outlets, ensuring a seamless integration into your existing plumbing setup.
- Bulk Value Pack: Supplied in a bag of 10, providing enough components to outfit multiple trays or build a complex, multi-tier flood and drain system.
Specifications
- Product Type: Modular Tub Outlet Extension
- Quantity: 10 Pieces per Bag
- Material: High-Impact, UV-Resistant Polymer
- Fitment: Compatible with standard 19mm/Outlet Bulkheads
- Application: Ebb & Flow Systems and Reservoir Drainage Management
Grower's Best Practices
- Setting the Flood Level: For most Ebb & Flow setups, aim to have your nutrient level reach approximately 2/3 of the way up the growing medium. Add or remove extensions to achieve this "sweet spot" for maximum oxygen and nutrient uptake.
- Reservoir Drainage: Use an extension in the bottom of a reservoir to ensure a "settling zone." This prevents the pump from sucking up heavy sediment or mineral precipitates that can collect at the very bottom of the tank.
- Secure Seating: Always ensure the extension is pressed firmly and squarely into the outlet. Top with a screen to prevent substrate (like clay pebbles) from entering the drain line.
Ideal For (Uses)
- Deep-Water Flood & Drain: Building high-volume systems that require deeper nutrient immersion for large root masses.
- Propagation Trays: Adjusting the depth for rockwool cubes or small pots where only the bottom few centimetres need to be flooded.
- Emergency Overflows: Creating a secondary, higher-level drain in reservoirs to prevent spills in the event of a float-valve failure.
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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