Description
The Suttner Chemical Injector 999000021 is a high-quality ST-64 upstream chemical injector designed for precise chemical application before the pump in pressure washer systems. Engineered for flow rates between 4.0 and 7.0 GPM, this injector is ideal for introducing detergents, degreasers, or sanitation chemicals into the water stream at low pressure, ensuring pump protection and optimal dilution.
Built with durable components and a flow-optimized body, the ST-64 delivers consistent chemical draw and performance. It is specifically designed for garden hose–style connections, featuring a 3/4″ Female Garden Hose (FGH) inlet and a 3/4″ Male Garden Hose (MGH) outlet, making it compatible with standard residential and commercial water supply systems.
Applications:
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Upstream chemical injection for pressure washers
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Industrial sanitation and cleaning systems
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Agricultural and horticultural chemical spraying
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Pre-pump detergent and degreaser application
Features:
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Upstream injection design protects the pump from chemical exposure
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Rated for flow between 4.0–7.0 GPM
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3/4″ garden hose FGH inlet and MGH outlet for easy hose integration
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Durable construction for reliable long-term use
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Ideal for downstream equipment that cannot tolerate chemical contact
Specs
Product Type: Chemical Injector
Category: Chemical Injectors
Brand: Suttner
Part Number: 999000021
Material: Brass/Polymer Body (unspecified in this case—can confirm if needed)
O-Ring: N/A
Pressure: Variable (typical garden hose feed; upstream configuration)
Temperature: Up to 60°C (140°F) typical
Threading In: 3/4″ F Garden Hose
Threading Out: 3/4″ M Garden Hose
Flow Rate: 4.0–7.0 GPM
Weight: 0.25 kg
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