Blackout Vertical Blind Thermal Slats – Replacement Louvres 89mm (3.5") – White
Upgrade your blinds with these blackout thermal vertical blind replacement slats, designed to fit the UK standard 89mm (3.5") width. Finished in classic white, they provide a clean, modern look while offering the benefits of light blocking and thermal insulation. Perfect for bedrooms, living rooms, and offices where you need style, privacy, and energy efficiency.
✅ Blackout fabric – blocks out unwanted light
✅ Thermal properties – helps regulate room temperature
✅ Standard 89mm (3.5") width – fits most UK vertical blind headrails
✅ Replacement slats – cost-effective way to refresh your blinds
✅ Classic white finish – versatile and modern, suits any décor
Type: Replacement Vertical Blind Slats (Louvres)
Size: 89mm (3.5") width (UK standard)
Length: Made to measure (choose your drop)
Colour: White
Features: Blackout + Thermal
Use: Replacement slats only (headrail, weights & chain not included)
Condition: Brand new
Remove one existing slat from your blind.
Measure the fabric drop only – from the very top to the very bottom of the fabric (do not include hanger or weight).
Order the drop size that matches your measurement.
Width is fixed at 89mm (3.5"), so no need to measure.
UK Seller – fast dispatch and reliable delivery
High Quality Blackout Fabric – stylish, durable, and practical
Energy Efficient – helps with insulation and light control
Affordable Solution – refresh blinds without replacing the full system
Trusted Service – customer support available if you need help