Pressed Equal Y-Piece Rigid Duct Splitter — Galvanised Steel Multi-Room Extraction Connector
Best for: Growers splitting extraction from two growing areas into a single outlet point without compromising airflow balance
Our thoughts
This is proper kit for multi-room extraction. Galvanised steel won't corrode, won't degrade, and rigid duct has genuinely less friction than flex alternatives. If you're combining two areas into one extraction point, an equal Y-piece like this is the right call — balanced pressure, no faffing about.
The Pressed Equal Y-Piece is a galvanised steel duct splitter that lets you branch a single extraction run into two separate ducting lines. All three spigots are the same diameter (equal configuration), which means air pressure stays balanced across both branches. It's the kind of fitting that sits at the heart of a properly planned multi-room ventilation system — simple, tough, and does exactly what it should.
How it compares
Y-piece duct connectors come in two main flavours: plastic and metal.
-
Plastic options (Kair, etc.): Cheaper, lighter, but temperature-limited to 60°C and less durable long-term
-
Metal Y-pieces (Pressed Equal): Galvanised steel construction, superior rigidity, less friction loss, built to last in professional setups
-
Unequal Y-pieces: Designed for reducing diameter (e.g., 150mm to 125mm); these create uneven pressure splits — not suitable if you need balanced extraction from two equal spaces
The equal diameter design is key here. If both your grow areas are the same size and you want them extracting at the same rate, equal pressure distribution matters. Unequal Y-pieces will starve one room.
Usage guidance
The Pressed Equal Y-Piece is designed for two primary applications:
Multi-area extraction (single fan setup)
One extraction fan draws air from two separate growing areas via the dual branches of the Y-piece, converging into a single main duct to a single outlet point. Works cleanly if both areas are the same size and ducting runs are roughly equal length and straightness. If one run is longer or more bent than the other, air pressure differences will mean one area extracts harder than the other — keep that in mind.
System combining (dual fan setup — preferred)
Each grow area has its own extraction fan and carbon filter. Both main ducts converge at a single Y-piece outlet point. This is the professional approach — each area gets independent control and you don't have pressure conflicts.
Installation essentials
Connect the Y-piece to your rigid ducting using female-to-female couplings sized to fit over the male spigots. Seal all joints with duct tape or use proper duct clamps (Fast Clamp or Quick Release Clamp recommended) to ensure an airtight fit. Keep ducting as straight as possible — bends and length create friction losses that reduce extraction efficiency. Shorter duct runs always perform better.
Technical specifications
-
Type: Equal diameter Y-junction duct splitter
-
Material: Galvanised sheet steel
-
Connection style: Male spigots (ducting fits over each branch)
-
Available sizes: 100mm (4″), 125mm (5″), 150mm (6″), 200mm, 250mm, 315mm
-
Configuration: All three spigots same diameter (equal split)
-
Performance advantage: Rigid duct construction delivers lower friction loss than flexible ducting
-
Coupling requirement: Female-to-female couplings (slightly larger diameter) needed to connect to standard ducting
Who this is for
- Growers with two equal-sized growing areas requiring a single extraction point
- Anyone upgrading from flexible to rigid ducting systems for better performance
- Professional setups where durability and low-friction airflow matter
- Installations combining two independent extraction systems into one outlet
- Growers who've learned that balanced pressure distribution across multiple rooms is actually important
Particularly suited to spaces where reliable, balanced airflow performance comes before budget bargaining.
Our take
This is proper extraction kit. Galvanised steel doesn't corrode, rigid duct genuinely performs better than flex, and an equal Y-piece keeps pressure balanced across both branches — which is exactly what you need if you're running two rooms off one point.
If you're building a multi-area ventilation system and you want equipment that won't let you down, worth picking up while stock lasts. Does exactly what it should, day in, day out.
