ST49 Rotating Sewer Nozzle – 1/8" NPT, Size 4.5 (0F-3B)
Model / SKU: 122 375 000
Category: Pressure Washer Accessories → Sewer & Drain Jetter Nozzles
Type: Rotating Sewer Nozzle – 0 Forward / 3 Back Jets (0F-3B)
The ST49 Rotating Sewer Nozzle (1/8″ NPT, Size 4.5) is a compact high-pressure jetter nozzle designed for effective pipe wall cleaning and propulsion in small-diameter drain lines. Featuring a 0 forward, 3 rear jet configuration, this nozzle focuses on maximum thrust and continuous rotational cleaning action.
Jet Configuration
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0 Forward Jets – No penetrating front jet
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3 Rear-Facing Jets – Provide propulsion and flushing action
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Rotating Action – Improves pipe wall cleaning consistency
This configuration is ideal when forward penetration is not required and propulsion + wall cleaning are the priority.
Technical Specifications
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Model: ST49
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Inlet: 1/8″ NPT
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Jet Pattern: 0F-3B
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Maximum Pressure: 4200 PSI
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Orifice Size: 4.5
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Application: Sewer & drain jetting
Key Features
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ST49 rotating sewer nozzle
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1/8″ NPT jetter nozzle
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4.5 orifice size
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4200 PSI maximum rating
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0 forward / 3 back jet configuration
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High-pressure drain cleaning accessory
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Compact design for small-diameter lines
Ideal Applications
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Residential drain cleaning
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Kitchen and grease line maintenance
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Small-diameter sewer lines
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Preventative maintenance jetting
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Soft sludge and buildup removal
When to Choose This Nozzle
Choose the ST49 (0F-3B) when:
✔ You need strong hose propulsion
✔ You want consistent pipe wall cleaning
✔ You're working in straight or mildly curved drain lines
✔ Forward penetration is not required
⚠ Sizing Reminder:
A #4.5 orifice must match your pressure washer’s GPM to maintain correct operating pressure. Using the wrong nozzle size can reduce performance or overload your pump.
