Heavy duty extension lead GFCI Surge Protection, SAFEMORE RCD extension lead With 3m Heavy duty Cable, 4 Gang 3680W, Plug Power Strip for Workshop/Garage/indoor - Yellow: Amazon.co.uk: DIY & Tools
Zexum 16A Caravan Mains Hookup Extension Lead With RCD In-Line Electrical World
13A weatherproof single socket extension lead (RCD option) – Tough Leads
Leisurewize Mains Site Extension Lead 25A RCD Trip – Urban Auto
RCD Extension Lead with 30mA RCBO MCB Leakage Protection, SAFEMORE 4 Gang 13A Fused Power Strip with 3M Heavy Duty Extension Cord for Pool Pump, Power Pressure Washer: Amazon.co.uk: Electronics & Photo