Constructed from high-quality brass, this water-butt tank adapter features a 1.25″ BSP male inlet (41.9 mm) that reduces to a 1″ BSP female outlet (33.3 mm) through the entire fitting, allowing connections on either side. It requires a 42 mm installation hole and comes complete with a back nut and washer for a secure, leak-proof seal.
This brass adapter is engineered for rainwater harvesting and fluid-storage systems, providing a robust, corrosion-resistant connection between pipes or fittings of different sizes. The through-thread design lets you attach hoses or connectors to either end without additional parts.
If your container already has a 1.25″ BSP female thread, simply screw in the male end for an immediate, leak-proof joint. Where no thread exists, drill a 42 mm hole, pass the adapter through the wall, then secure with the supplied washer and back nut. The internal washer ensures a watertight seal, while the nut locks the fitting firmly in place.
Ideal for adapting water-butt setups or other containers, this adapter offers flexibility and long-term reliability in outdoor environments. Its brass construction resists UV exposure and environmental wear, ensuring consistent performance over time.
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Material: High-quality brass
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Inlet Thread: 1.25″ BSP male (41.9 mm)
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Outlet Thread: 1″ BSP female (33.3 mm) through-thread
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Hole Size: 42 mm diameter
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Includes: Back nut & washer for leak-proof installation
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Features: Corrosion-resistant; UV-stable; through-thread for dual-side connection
