Cowdroy Twin Wheel Spline Roller, Convex and Concave
Cowdroy Twin Wheel Spline Roller, Convex and Concave
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Rescreening a flyscreen goes a lot quicker when you've got the right roller, and this one has both wheels you need on the one handle.
The convex wheel creases the mesh down into the channel of the frame first, then you flip it over and the concave wheel rolls the spline in over the top to lock the mesh in place. Cowdroy rate it for spline from about 4mm to 6mm, which covers most household screen doors and window screens.
Sold each. Full specs are in the tabs below, and if you're not sure which spline suits your frame, bring a bit of the old one in and we'll sort you out, or call us on (08) 8536 4333.

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The details
- Brand: Cowdroy
- Type: Spline roller, twin wheel
- Wheels: One convex, one concave
- Convex wheel: Creases the mesh into the frame channel
- Concave wheel: Rolls the spline over the mesh to lock it in
- Suits: Spline about 4mm to 6mm
- Sold: Each
Why it's worth it
- Mesh goes in tight and even, with fewer wrinkles
- No need to buy two separate rollers
Shipping and Returns
We pack and send your order with care, right here from our Strathalbyn store. Most parcels leave within 1-2 business days, and you'll get tracking as soon as it's on the way. If you're local, you can choose click-and-collect or our delivery service at checkout.
If something arrives damaged or not quite right, let us know within 14 days and we'll sort it quickly. You can return unused items in their original condition for a refund or store credit. For safety reasons, we can't accept returns on gas bottles, cut materials, or custom orders.
We're here to make things easy, so if you ever have a question about your delivery or a return, our team is only a call away.
Why you'll love shopping with us
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Straight answers, fast
Our team respects your time and gives practical advice without the pitch.
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Support beyond the sale
We help with timing, soil fixes, and setbacks — not just what to buy today.
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Same care for trade and DIY
Every customer gets the same attention, whether it’s one room or a full build.