Replacement Male Hose Connector Stem set for Puzzi 100, Puzzi 200, Puzzi 300, Puzzi Pro 400, and Puzzi 8 models (does not fit Puzzi 8/). Contains 2 pieces for reliable use with carpet and upholstery cleaners. Male end fitting provides a precise, secure attachment to the hose assembly, delivering a tight seal and leak operation on various carpeted surfaces. Fully compatible plastic hose stem replacement identified by part number 4.443019.0 (44430190), engineered to match original equipment specifications for seamless integration with Puzzi machines. Easy installation with a tooldesign that allows quick attachment and detachment, making it simple to or upgrade your hose system without professional assistance. Practical use scenarios: Routine maintenance: a worn hose stem on Puzzi 100–300 to restore reliable performance during regular carpet and upholstery cleaning. Heavyduty cleaning: upgrade hose connection on Puzzi Pro 400 or Puzzi 8 models to ensure consistent, leak operation during intensive upholstery and traffic carpet cleaning. Field service: keep as part of a spare parts kit for professional cleaners to quickly service hose assemblies during onsite jobs.