This 3 in 1 adapter set provides continuous gas supply to your stove,do not frequently replace your gas tanks.It features on safe counter-current protection,each adapter independently supplies gas to outdoor stove,which does not affect the use of one/two gas tanks and not worry about leakage for other adapters. Z30 Z17 Z13M Features: 3 in 1 Adapter: Provides continuous gas supply to your stove,do not frequently replace your gas tanks.Safe counter-current protection,each adapter independently supplies gas to outdoor stove,which does not affect the use of one/two gas tanks and not worry about leakage for other adapters.Stainless steel bracket design for stable support.Dust cover to threaded adapter with good protection. Extension Hose: Increases the distance between your stove and your gas tank. Split Type Furnace Adapter: Used to connect your standard flat tank,magnet split type furnace and butane flame torch.Magnet ring for easy and quick connection.Automatic closing function,it won"'"t leak easily. Convenient & Compact: Lightweight and small size for convenient storage.Suitable for camping,hiking,fishing,backpacking etc. Specification: Model: Z30 / Z30+Z17+Z13M (optional) Material: Aluminum alloy + Stainless steel + Rubber + Copper Z30: 19 * 6.2 * 4.6 cm / 7.5 * 2.4 * 1.8 in Z17: 107 * 2 cm / 42.1 * 0.8 in Z13M: 4.4 * 3 cm / 1.7 * 1.2 in Package weight: Approx. 249 - 324 g / 8.8 - 11.4 oz Z30 Z17 Z13MPackage List: 1* 3 In 1 Butane Adapter (Z30) 1* Extension Hose (Z17) 1* Split Type Furnace Adapter (Z13M) Z30Package List: 1* 3 In 1 Butane Adapter (Z30) BKZ30 Features: 45 quick-loading gastanks interface, quick locking gastanks, airtight. Farewell to frequent gastank changes, stable and long-lasting. Aluminum alloy material, high hardness, light weight, surface oxidation black process, increasing hardness and corrosion resistance. Sealing nut, protects the thread, and prevents dust and dirt. Each interface is equipped with an independent antibackflow device to meet the needs of one/two gastanks. Specifications: Color: black Material: aluminum alloy+alumina Item size: 190 * 46mm / 7.5 * 1.8in Item weight: 163g / 5.7ounce Package size: 240 * 100 * 40mm / 9.4 * 3.9 * 1.6in Package weight: 170g / 6.0ounce Packing List: 1 * FuelTank Adapter BKZ30