D-D UltraFlow Aquarium Weir Comb – 60cm High-Flow Overflow Comb
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D-D UltraFlow Weir Comb – 60cm
Improve Aquarium Overflow Performance
Maximise water movement through your aquarium overflow with the D-D UltraFlow Weir Comb, an innovative high-flow alternative to conventional aquarium overflow combs.
Traditional weir combs can restrict the volume of water passing into the overflow chamber, causing the display aquarium's operating water level to rise. In some installations, this can bring the water dangerously close to glass bracing or reduce the available safety margin.
The D-D UltraFlow uses a combination of vertical and horizontal drainage slots, increasing the available flow area and allowing approximately 30–50% more water to pass through compared with conventional vertical-slot combs.
Key Features & Benefits
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Increased water flow – Approximately 30–50% greater flow capacity through the slotted sections.
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Innovative slot design – Vertical and horizontal openings reduce overflow restriction.
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Improved water-level control – Helps reduce excessive water build-up in the display aquarium.
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Supports higher return flow – Useful when upgrading to more powerful return pumps, subject to the capacity of the complete drainage system.
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Adjustable mounting – Designed for 6mm, 8mm and 10mm glass.
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Adaptable installation – Can be bonded to suitable thicker glass or acrylic overflow structures.
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Removable comb – Easy access for cleaning and maintenance.
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60cm length – Suitable for new installations and retrofitting existing aquarium weirs.
Flexible Installation
The UltraFlow features a two-part design comprising the slotted comb and an adjustable mounting runner.
For suitable glass up to 10mm thick, the runner clips onto the weir, allowing the comb to be removed for cleaning.
For thicker glass or suitable acrylic overflow structures, the runner can be modified and securely bonded using an appropriate aquarium-safe adhesive.
Maintain Efficient Overflow Performance
Regular cleaning helps prevent algae, debris and other obstructions from restricting water movement through the comb.
Whether you're replacing an existing weir comb or designing a new sump-fed aquarium, the D-D UltraFlow Weir Comboffers a practical way to improve overflow efficiency.
D-D UltraFlow – increased water flow, reduced restriction and convenient maintenance.