Islands : Channel Islands (JE, GY), Isle of Man (IM), Isle of Wight (PO30-PO41), Scilly Isles (TR21-TR25), Shetland Islands (ZE), Orkney Islands (KW15-KW17). Shower Enclosure. ✅ Efficient Drainage Design: Designed with a precise 1.42 cm gradient, this shower tray ensures rapid water flow towards the drain, keeping the area dry and slip-free while minimizing water buildup for enhanced safety.