Safety Valve / Filler Cap for Snail 2/3/5 litre, Speedy Twin / Pratika Ironing Boilers by Speedypress 3/4 safety valve / filler cap to fit: Snail 2-litre Ironing Boiler & Iron for Professional Use Snail 3-litre Ironing Boiler & Iron for Commercial Use Snail 5-litre Ironing Boiler & Iron for Industrial Use Snail 5-litre Semi-Automatic Ironing Boiler & Iron for Industrial Use Speedy Twin Ironing Boiler System with 2 Irons for Industrial Use Speedy (C5+) Vacuum and Heated Ironing Table with Built-in Snail 5-litre Boiler for Industrial Use Cap features a 'medicine bottle' type push-down to screw safety feature. ABOUT US Speedypress have been making commercial ironing equipment including boilers, ironing tables, steamers and accessories in the UK since 1965. The Ironing Press Company - Europe's leading supplier of Ironing Presses, Sewing Machines and Accessories since 1977.