Description
Red Sea Tank Net Screen Cut Out 15/40mm — Zig-zag profiles for stepping a DIY net cover around light arms and pipes
A straight frame cannot pass a light arm or an overflow without a gap, and a gap is where the fish go. Red Sea Tank Net Screen Cut Out 15/40mm (SKU: RED265) is Red Sea’s set of pre-formed zig-zag cut-out profiles for its DIY Net Cover system, used to step the aluminium frame neatly around rim-mounted items such as a light mounting arm, a cable, a pipe or overflow pass-through or an automatic feeder. Red Sea says the factory-formed shape gives a cleaner, tidier cut-out than hand-made notches and keeps the mesh tension better than cutting into a straight profile.
The pack holds four pieces: a left and a right at 15 mm and a left and a right at 40 mm, the two figures being the depth of the step, so smaller and medium protrusions can each be followed closely. It is a component set, not a cover, for any Red Sea DIY Net Cover frame from 60 cm (RED260) to 180 cm. On REEFER Deluxe tanks with universal light mounts Red Sea specifies one kit for a 250, two for a 350 or XL 425, three for a 450, XL 525 or XXL 625, and four for an XXL 750. Irregular shapes take the universal cut-out kit.
Usage & Application
When to Use
- Lights on universal mounting arms: REEFER Deluxe systems where the arm crosses the rim.
- Pipes and cables: Return lines, overflow pass-throughs and heater or pump cords on the rim.
- Automatic feeders: A stepped opening that leaves the feeder in place with the cover on.
- Replacing rough notches: Tidying an existing cover whose hand-cut gaps have loosened the mesh.
Installation Guide
- Choose the depth: 15 mm for cables and slim brackets, 40 mm for pipes and light arms.
- Pair left and right: Each cut-out uses a matched left and right piece joined to the straight profiles with inner and outer corners.
- Cut the frame to meet them: Shorten the adjoining profiles so the zig-zag sits exactly at the obstruction.
- Mesh as normal: Roll the spline around the stepped section the same way as the rest of the frame.
Product Specifications & Highlights
Key Features
- Two step depths: 15 mm and 40 mm, left and right of each.
- Factory-formed shape: Cleaner than hand notches, better mesh tension.
- Fits every DIY Net Cover size: 60 to 180 cm kits.
- Matches Red Sea’s fit table: One to four kits per REEFER Deluxe model.
- Aluminium profile: Same 8 mm section as the frame.
Product Details
- Brand: Red Sea
- SKU: RED265
- Barcode (GTIN/EAN): 7290100771013
- Product Type: Accessories > Aquarium Net Covers
- Part Number: R42085
- Pack Contents: 4 zig-zag profiles — 15 mm left and right, 40 mm left and right
- Compatible With: Red Sea DIY Net Cover kits 60 cm (RED260), 90 cm, 120 cm (RED262), 150 cm, 180 cm
- Kits Needed: REEFER 250 DLX 1; 350 and XL 425 DLX 2; 450, XL 525, XXL 625 DLX 3; XXL 750 DLX 4
- Alternative: Red Sea universal cut-out kit for large or irregular shapes
- Target Environment: Open-top aquariums fitted with a Red Sea net cover


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