Radiator ~1000 to 1100mm wide. Type 21 or 11 (College Town GU47)

Type 2-1 = 2 water panels, 1 set of fins
Type 1-1 = 1 water panel, 1 set of fins
Sadly, a thicker rad like a 2-2 may be fouled by adjacent furniture drawers.
We have a Type 1-0 (thin profile) which will be freegled when successfully replaced.