NS-15 knapsack manual sprayer is a new generation of economical, safe, efficient and leak-proof plastic knapsack manual sprayer developed by our company. It is a replacement product of manual sprayer. Can be widely used in food, cotton, vegetables, fruit trees and other disease, attack, grass damage prevention and control, can also be used in the family, public places, animal husbandry enclosure health insecticide, environmental disinfection and other aspects.
This pressurized hand sprayer features a 20.1-inch (51cm) long wand for hard-to-reach areas, making it ideal for targeted pesticide application—such as indoor pests, tall shrubs, or narrow gaps. The manual pump design builds 2.5bar (36PSI) pressure, delivering precise spray patterns from fine mist (for delicate plants) to jet stream (for deep cracks) and maintains pressure for 12-15 minutes of continuous use. Lightweight construction (2.3kg/5.1lbs empty) and adjustable padded shoulder strap ensure comfort during extended use, while a compact design (tank diameter 20cm) fits in storage cabinets or car trunks. It also includes a child-resistant lid (requires pressing + twisting to open) for safety in homes with kids or pets.
Extended Reach Wand
51cm (20-inch) lance made of lightweight aluminum (weighs only 200g) reaches under foliage, into wall voids, or behind appliances—no need for ladders or stools. Brass nozzle (with chrome plating) maintains performance with abrasive pesticides (e.g., wettable powders) and resists wear from frequent use. The wand also has a 360° rotating tip to spray upside down (for ceiling corners or under furniture).
Leak-Proof System
FKM seals (chemical-resistant) and screw-top lid (with a double O-ring) prevent chemical spills—even when the sprayer is tilted at 45° or shaken. Pressure release valve (located on the lid) ensures safe operation and storage: press it to release pressure before opening the lid, avoiding liquid splashing from trapped air.
User-Centric Design
Quick-pump handle (ergonomic curved shape) builds pressure in 15-20 strokes—faster than standard sprayers—and has a non-slip rubber grip for wet hands. Transparent tank with volume markings (in liters/ounces) avoids overfilling and helps measure pesticide dilution ratios (e.g., 5ml pesticide per 5L water). A hook on the wand allows hanging the sprayer when not in use (e.g., on a garden fence).
Indoor pest control: Wall voids (for ants, termites), baseboards (for cockroaches), and ceiling corners (for spiders, wasps)
Outdoor gardening: Rose bushes (spraying undersides of leaves for black spot), tomato cages (reaching fruit clusters), and shrubbery (behind branches for scale insects)
Household use: Window frame cleaning (removing mold), patio furniture sanitization (plastic/wood surfaces), and garage floors (oil stain removal with degreasers)
Pet areas: Kennel disinfection (cages, bedding) and flea treatment (carpets, pet beds—use pet-safe pesticides only)
Q: Can the wand be removed?
A: Yes, the quick-connect wand detaches in seconds (twist + pull) for storage or replacement. It is compatible with other 1/4-inch quick-connect wands (sold separately) for extended reach or different spray patterns.
Q: How to fix low pressure?
A: Check for leaks (inspect seals and hose connections—tighten loose parts or replace worn seals); clean the inlet filter (located at the bottom of the pump) if it’s clogged with debris; or replace the nozzle if it’s worn (uneven spray indicates a damaged nozzle).
Q: What’s the tank capacity?
A: 8L working volume (usable liquid) with 10.5L total capacity (to allow space for air pressure). Do not fill above the 8L mark—overfilling reduces pressure and increases spill risk.
Q: Can the wand be extended further?
A: Yes, it’s compatible with 30cm (12-inch) extension tubes (sold separately) that connect to the wand via quick-connect fittings. With an extension, the total reach increases to 81cm (32 inches)—ideal for tall houseplants or high wall voids.
15L filling capacity
1.0L air chamber capacity
Working pressure 1-4bar
Maximum pressure 10bar
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