Smith Performance Sprayers Contractor 1‑Gallon Pump Sprayer Model 190504 — Viton Seals, Brass Poppet

The Smith Contractor 1 Gallon Sprayer (Model 190504) is a heavy-duty, multi-purpose pump sprayer built for cleaning, sanitizing, chemical application, and lawn or garden work with commercial-grade components for reliability.

Built for professionals and serious homeowners, the Model 190504 combines a rugged 1-gallon polyethylene tank with corrosion-resistant internals and simple maintenance features. It’s engineered to tolerate harsh chemicals while giving operators better control and comfort through a lockable shut-off, long wand reach, and multiple nozzle options. The design focuses on safety, ease of service, and versatility so you can switch between tasks without swapping tools.

What makes this sprayer tough enough for commercial jobs?

The Smith Contractor sprayer uses premium materials where it matters: a nickel-plated brass poppet and Viton seals throughout the pump and shut-off to resist chemical degradation. The pressure release valve prevents accidental discharge when opening the tank, and the in-line filter keeps the wand and nozzles from clogging.

• Nickel-plated brass poppet for durable, precise flow control
• Viton seals in pump and shut-off for broad chemical compatibility
• Pressure release valve for safe tank opening
• Easy-to-clean in-line filtration to reduce nozzle blockages

How does the sprayer reduce hand fatigue and improve accuracy?

The ergonomic commercial-grade shut-off includes a comfortable grip and a lock-on feature to keep the trigger engaged without continuous squeezing. A 14-inch poly wand increases reach and accuracy, while the included adjustable nozzles let you tailor the spray pattern from a focused stream to a wide cone for different tasks.

• Lockable shut-off reduces continuous hand strain during prolonged use
• 14-inch poly wand for extended reach and controlled application
• Adjustable poly and brass nozzles for stream-to-cone patterns
• Multiple spray patterns enhance precision and reduce overspray

Which nozzles and attachments are included, and what can I add?

The Model 190504 ships with five versatile nozzle options to cover most onsite needs, plus compatibility with standard TeeJet nozzles for further customization. Included are adjustable poly and brass nozzles, two flat-fan tips for even coverage, and a high-performance foaming nozzle for detergents and cleaners.

• Poly adjustable nozzle for chemical resistance and flexibility
• Brass adjustable nozzle for durability and precise streams
• Two flat fan nozzles for consistent coverage on surfaces
• High-performance foaming nozzle for cleaner or sanitizer applications

How easy is maintenance and servicing?

The sprayer is designed for fast, tool-free upkeep. Viton seals can be replaced without special tools, and the in-line filter is straightforward to access and clean. Those features minimize downtime and keep the unit performing through repeated professional use.

• Tool-free seal replacement for quick field service
• Accessible in-line filter for easy cleaning and clog prevention
• Durable tank and wand materials resist corrosion and wear

Who is this for: The Smith Contractor 190504 is aimed at professional contractors, janitorial teams, landscapers, and any homeowner who needs a robust, chemical-compatible sprayer. It suits jobs that require portability, controlled application, and resistance to aggressive chemical agents—cleaning and sanitizing tasks, foam applications, herbicide or pesticide spots, and precision rinsing. If you need a compact, serviceable sprayer that performs reliably across diverse commercial uses, this model is built to meet those demands.