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Plastic Air Manifolds – 4mm Airline Splitters for DWC

Plastic Air Manifolds – 4mm Airline Splitters for DWC

Regular price £2.50
Regular price Sale price £2.50
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Free express delivery over £991–2 working days
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Description

Run several airstones from one pump outlet

Plastic manifolds split a single air line from your pump into multiple outlets, letting one strong pump feed several airstones or diffusers across a multi-bucket setup. They are the simplest way to scale aeration in DWC and RDWC systems without buying a separate pump for every container.

Key Benefits

  • Multiple outlets from one air line, splitting a single feed across several sites
  • Push-fit connections for standard 4mm airline tubing
  • Even airflow distribution - every outlet draws from the same pump, so buckets aerate equally
  • Durable plastic build that stands up to constant grow-room use

Uneven oxygen across a multi-bucket system?

Running individual pumps often leaves some buckets better aerated than others, and the bucket that falls short on airflow is where roots turn brown and growth stalls first. A manifold fed from one capable pump spreads oxygenation evenly, so every root zone gets the same feed.

How to Use

  • Connect the inlet to your air pump with a length of 4mm air line
  • Run a separate line from each outlet to its own airstone or diffuser
  • Check each outlet delivers a steady stream of bubbles and size the pump to the number of stones
  • Block off any unused ports so pressure is not wasted

Technical Specifications

  • Type: plastic air / nutrient manifold
  • Use: splits one air pump line between several air stones
  • Also suits: spreading nutrient solution in NFT systems
  • Connection: push-on airline spigots
  • Airline: not included
By size6 Outlet10 Outlet20 Outlet
Outlets61020
Inlet8 mm8 mm–
Outlet size4 mm4 mm–

Questions & answers

What airline do they take?

Standard 4mm airline, which push-fits onto the inlet and each outlet. We stock 4mm air line to match.

How many outlets can I get?

6, 10 or 20 outlets, all fed from a single pump line.

How do I connect it?

Run 4mm air line from your pump to the inlet, then a separate line from each outlet to its own airstone or diffuser.

What should I do with spare outlets?

Block off any unused ports so pressure isn't wasted, and size the pump to the number of stones you're running.

Can I get them delivered?

Yes. Orders over £60 get Free Express Delivery to the UK mainland, arriving in 1–2 working days when you order by 3pm Mon–Fri.

FREE Express Delivery on orders over £99. We aim to post same day on Express Delivery — order by 3pm Mon–Fri — and delivery takes 1–2 working days. A few harder-to-stock or large, bulky items can take a little longer — we'll tell you if that applies to your order. Heavy-item surcharges are always shown at checkout before you pay — we only ever charge what delivery costs us. Prefer to collect? Free pickup at our Wembley store.