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🛠️ Protect your power, filter like a pro!
FILTERWEARS Pre-Filter F135K is a hydrophobic, breathable mesh cover engineered to shield S&B air filters (KF-1035 series) from debris, dirt, and water. Made in the USA from durable monofilament polyester, it fits precisely and withstands heat up to 450°F without compromising airflow or performance—even in freezing conditions.
| Brand | FILTERWEARS |
| Product Dimensions | 9.75"W x 7"H |
| OEM Part Number | KF-1035, KF-1035D, KF-1068, WF-1023 |
| Shape | Oval |
| Manufacturer | FILTERWEARS |
| Automotive Fit Type | Vehicle Specific Fit |
| Item Weight | 1.13 ounces |
| Item model number | KF-1035 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | F135K |
M**G
Works great.
Easy install, good snug fit over dry filter membrane.
B**J
Fits well
Works well on S&B cold air intake at the dunes.
B**N
Fits well. Does it's job.
Fits very well. Looks great. And does it's job.
B**J
Fits Perfectly
This product fits my S&B 1035 filter perfectly. It is easy to slide on and fits snugly.
J**O
Good product
I dont like that it cost $30, but it works well.
B**N
Peace of Mind!
Easy to install, and allows of peace of mind knowing the filter is clean.
C**Y
Great for S&B cold air intake protection
Awesome bag for filter. No issues. As grandma used to say, put a sock on it!
I**X
Wouldn't recommend
Pre-filter restricts airflow which causes poor efficiency. With pre-filter installed truck blows more black smoke than normal and gets worse fuel mileage
Trustpilot
1 month ago
2 months ago