Series 21 Male Couplings

The Series 21 Type Quick Connect Male Hosetail is a precision-engineered quick‑release fitting designed to integrate seamlessly into your water‑fed window cleaning system. Built around the ubiquitous Series 21 (Rectus 21) standard, this male connector mates instantly with compatible female couplings to create a robust, leak‑free link between your hose sections. Its nickel‑plated brass construction delivers corrosion resistance and long life under repeated use, while the precision hose tail ensures reliable alignment and secure flow. Choose the 6 mm version for lightweight microbore setups or the 8 mm version when higher water volume is needed.

Ideal for professionals and DIY cleaners alike, this connector eliminates cumbersome threading: snap it into place and get water moving fast. Whether you’re linking pole hoses to reels or extending feed lines across complex cleaning rigs, this durable coupling keeps connections tight and water flowing where you need it.