Lafferty Model 21 Sprayer

Lafferty Model 21 Sprayer – Low Volume Hose-End Chemical Applicator

The Lafferty Model 21 Sprayer is a professional-grade low-volume hose-end chemical sprayer designed for accurately diluting and applying chemical solutions using standard city water pressure. Built for durability and efficiency, it's the go-to tool for water treatment professionals, facility maintenance teams, and industrial cleaning contractors.

Whether you're treating cooling towers, disinfecting food processing areas, or removing algae from exterior surfaces, the Lafferty Model 21 ensures precise chemical application with minimal waste.

Key Features of the Lafferty Model 21 Sprayer

• Precision Dilution and Spray Application
  Uses venturi action to accurately mix chemical concentrates into the water stream for consistent, low-volume fan spray—ideal for industrial sanitation, biocide application, and scale inhibitor treatment.

• Machined Polypropylene Construction (USA Made)
  Built to outperform and outlast molded plastic sprayers, the Model 21 is machined from high-quality polypropylene for long-term performance in harsh environments.

• Heavy-Duty Stainless Steel Quick Disconnect
  Featuring a robust stainless steel socket with six retaining balls for secure and easy connection changes—perfect for high-turnover maintenance tasks.

• Rapid Rinsing Capability
  The quick-disconnect chemical assembly allows for fast rinsing and chemical changeovers, reducing downtime during shift transitions or multi-chemical jobs.

• Water-Saving Design
  Operates at less than half the flow rate of comparable models—reduces water usage without compromising spray effectiveness.

• Universal Chemical Container Compatibility
  Compatible with standard 1-gallon and many 5-gallon chemical jugs—no need for proprietary containers.

• Safety-Focused Features
  Includes a durable jug lid and suction tube with strainer to minimize chemical splashing, vapor release, and worker exposure.

• No Moving Parts
  Fewer maintenance concerns and consistent performance thanks to venturi-based operation with no internal pumps or motors.

• Low Pressure Friendly
  Functions effectively at water pressures as low as 20 PSI, making it suitable for older facilities and rural operations.

• Protected, Recessed Fan Nozzle
  Produces a broad, even fan spray with a recessed design that prevents damage during rugged use.

• Optional Models & Accessories Available

  • Pre-attached chemical bottle version: Part #969820-B32

  • High-flow version: Part #969857

What's Included with the Lafferty Model 21 Sprayer

• Quick Disconnect Injector Assembly
  Machined polypropylene body with stainless steel fittings

• Recessed Fan Spray Nozzle with Protector
  For uniform application and durability in industrial environments

• 10-Foot Chemical Suction Tube with Jug Lid and Strainer
  Ensures safe and consistent chemical draw

• 20 Color-Coded Metering Tips
  Fine-tune dilution rates for a wide variety of chemical concentrations

• Ergonomic Spray Gun with Quick Disconnect and Inlet Screen
  Comfortable to use and includes inline filtration to prevent clogging

Applications:
Cooling tower treatment, HVAC maintenance, warehouse sanitation, exterior algae removal, food and beverage facility cleaning, pest control chemical application, and more.