How To Pick The Perfect Replacement Power Washer Gun
Even with the best intentions, stuff happens: the spray gun that went into the ...
Local Pickup FAQ's
+
Share This Product
Features
Grade
Consumer
Style
Gas
Inflow
1/4" Snap Coupler (Male)
Outflow
Fan Spray
- 3.5 Orifice
- Orifice size is determined by your PSI and GPM; see chart
- 40° Wide Spray Angle
- Powerful fan spray washes & rinses, cleans lawn furniture & cars
- Also handy for washing siding, garages, & RVs
- White Color-Coded Tip Casing & Steel Tip
- Easy spray pattern identification
- Durable & long lasting replacement tip
- 1/4" Male Quick-Change Connector
- Compatible with most brands that use quick connectors
California residents see
Warning: This product can expose you to chemicals including Di-n-butyl phthalate (DBP) which is known to the State of California to cause Developmental Harm.
For more information go to: www.p65Warnings.ca.gov
Specifications
6637
General Information
Product Category
Pressure Washer Accessories
Overview
Product Category
Pressure Washer Accessories
Weight
.5 Pounds
Consumer Warranty
90 Days
Product Length
1.25 Inches
Product Width
4.68 Inches
Product Height
3.25 Inches
UPC
696471066371
Accessories
Accessory Grade
Consumer
Accessory Style
Gas
Inflow
1/4" Snap Coupler (Male)
Outflow
Fan Spray
Rated PSI
4200 PSI
What Orifice Size Do I Need?
Match your pressure washer's PSI and GPM in blue. The correct orifice size will be listed in the grey area.
| GPM | 1000 PSI | 1200 PSI | 1250 PSI | 1300 PSI | 1500 PSI | 1800 PSI | 2000 PSI | 2100 PSI | 2200 PSI |
|---|---|---|---|---|---|---|---|---|---|
| 2 | 4 | 3.5 | 3.5 | 3.5 | 3.5 | 3 | 3 | 3 | 3 |
| 2.5 | 5 | 4.5 | 4.5 | 4.5 | 4 | 3.5 | 3.5 | 3.5 | 3.5 |
| 3 | 6 | 5.5 | 5.5 | 5.5 | 5 | 4.5 | 4.5 | 4 | 4 |
| 3.5 | 7 | 6.5 | 6.5 | 6 | 5.5 | 5 | 5 | 5 | 4.5 |
| 4 | 8 | 7.5 | 7 | 7 | 6.5 | 6 | 5.5 | 5.5 | 5.5 |
| GPM | 2300 PSI | 2400 PSI | 2500 PSI | 3000 PSI | 3200 PSI | 3500 PSI | 4000 PSI | 5000 PSI |
|---|---|---|---|---|---|---|---|---|
| 2 | 2.5 | 2.5 | 2.5 | 2.5 | 2 | 2 | 2 | 2 |
| 2.5 | 3.5 | 3 | 3 | 3 | 3 | 2.5 | 2.5 | 2 |
| 3 | 4 | 4 | 4 | 3.5 | 3.5 | 3 | 3 | 2.5 |
| 3.5 | 4.5 | 4.5 | 4.5 | 4 | 4 | 3.5 | 3.5 | 3 |
| 4 | 5.5 | 5 | 5 | 4.5 | 4.5 | 4.5 | 4 | 3.5 |
Reviews
Generac 6637 Reviews & Ratings
Be the First to Write a Review
Do you own this product?
Please share your insights with fellow shoppers.
Please share your insights with fellow shoppers.
How-To Articles
How to Choose the Perfect Spray Tip For the Job
Who would think something so small could do so much? Well, without a spray tip,...
How to Pick the Perfect Replacement Hose
High-pressure hoses take a heck of a beating from the pressurized water they co...
Pressure Washers How-To Library
Articles, Tips and Buying Guides from Our Experts
Ask A Question!
*Required Fields
+
Thank You For Submitting Your Question
Your submission has been sent successfully. Please give our experts up to two business days to respond.
Media Gallery
Generac 3.5 Orifice Spray Tip (40° White)
Customer Review Images
