Got a pressure washer or accessory with an oddball M21 female thread and need to step up to standard M22? This adapter is your clean solution.

The Aquatouch M21 Female to M22 14mm Male Adapter lets you convert non-standard gear into the more common M22 thread system, which means you can run regular pressure washer hoses, lances, or short guns without stress. It’s especially useful for adapting older or less common machines to fit with modern detailing equipment.

Built from solid brass, this fitting is corrosion-resistant and pressure-rated — no plastic threads, no leaks, just a proper connection where you need it.

Features:

• Thread Conversion: Converts M21 Female fittings to M22 14mm Male threads, opening up compatibility with most accessories.
• Solid Brass Construction: Long-lasting, corrosion resistant, and capable of handling high-pressure loads.
• Detailer-Friendly Fit: Makes adapting to foam cannons, hoses and short guns simple.
• Leak-Free Design: Precision machined threads offer clean sealing without excess tape or fiddling.
• Compact Adapter: Keeps your setup clean and streamlined.

Compatibility:

• Input: M21 female-threaded pressure washer outlets or accessories.
• Output: M22 14mm male thread — fits most pressure washer hoses, guns, and fittings.
• Perfect for older, entry-level, or non-standard machines needing an upgrade path to modern accessories.