Click to expand Tap to zoom 21 mm Butane Gas Clip On Pigtail Adaptor - 513 Hurry only 1 left!Only 1 left!Free UK DeliveryFree UK Delivery by IGT Save £-11.99 £11.99 | / Inc VAT SKU 22513 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart 21 mm Butane Gas Adaptor. Pigtail Adaptor. Clip On. Length 90 mm. Diameter 43 mm. Part Number 513.