Caravan Opening Window Rubber Seal – Fits 25mm Panel – Black EPDM with Mastic, 14mm Sponge Bulb – 20m Coil

Opening window rubber for caravans with a 25 mm panel, supplied as one continuous 20 m coil. A solid black EPDM channel with a mastic strip on the inner leg and a 14 mm hollow sponge bulb along the side. It is locked in with a 23 mm PVC insert, sold separately.

At a glance

Pick the right size

These rubbers look alike but are made for one panel thickness each. Measure your panel first.

Why EPDM

EPDM stays flexible after years of sun, frost and road spray, so the legs keep their grip and the bulb keeps springing back. Older rubbers that have gone hard and shrunk are the usual reason caravan windows start to weep at the corners.

What's in the box

• 1 × 20 m coil of 25 mm panel opening window rubber

Also needed (sold separately):

• 23 mm PVC insert, one 20 m coil: grey or white
• Optional: insert fitting tool (BCRST1), made for feeding these inserts into the rubber

Fitting tips

1. Measure. Check the panel is 25 mm and add up the run you need, with a little spare for trimming.
2. Strip and clean. Remove the old rubber and any old mastic, then clean and dry the frame edge.
3. Fit the rubber. Start part-way along a straight side, not at a corner, and ease it round the corners without stretching it.
4. Lock it. Feed the 23 mm insert under both lips of the top channel. The BCRST1 tool makes this much easier.
5. Finish. Cut the rubber and insert square and butt the ends tightly.

Questions buyers ask

Is the price per metre?
No. One unit is a complete 20 m coil in a single length. A quantity of 2 sends two coils.

Is the insert included?
No. You need a 23 mm PVC insert in grey or white, sold separately.

Will it fit a 26 mm panel?
Use the 26 mm version instead. Each rubber is made for one panel thickness; see the size table above.

What is the mastic for?
It is a soft sealing compound along the inner leg that beds against the frame to help keep water out.

Can I use a 25 mm insert with this rubber?
No. The 25 mm panel and 26 mm panel rubbers take the 23 mm insert; the 25 mm insert is for the 27 to 35 mm rubbers.

Delivery & help

Dispatched from the UK. Trade orders welcome. Not sure which size you have? Send us your panel measurement and a photo of the old rubber before you order.