Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 9 - Jul 14
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Description
Earls Hardline Adapter - 00121ERLOverview: Stainless Steel Construction. Available for Any Hardline Plumbing Situation And Many Custom Applications. Features: Application: Year Make Model Submodel Engine Size Universal Specs: Adapter Size ( A ) 1 2 20 I. F. Male Adapter Size ( B ) 5 8 18 I. F. FEMALE Adapter Type Hardline Adapter Angle Straight Brand Earls Emission Code 5 Finish Natural Material Stainless Steel Product Line Premium Product Type Hardline Adapter Quantity Per Pkg. 1
Overview:
Stainless Steel Construction. Available for Any Hardline Plumbing Situation And Many Custom Applications.Features:
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| Universal |
Specs:
| Adapter Size ( A ) | 1/2-20 I.F. Male |
|---|---|
| Adapter Size ( B ) | 5/8-18 I.F. FEMALE |
| Adapter Type | Hardline Adapter |
| Angle | Straight |
| Brand | Earls |
| Emission Code | 5 |
| Finish | Natural |
| Material | Stainless Steel |
| Product Line | Premium |
| Product Type | Hardline Adapter |
| Quantity Per Pkg. | 1 |
| Thread | 1/2"-20 |
| Tube Size | 3/8 Inch |
| Warning | California Proposition 65 |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.0 ★★★★★
Based on 1448 reviews
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Product Reviews
★★★★★ 5
Perfect fit on 2008 Honda CRV LX
This KAX air filter was an excellent fit in a 2008 Honda CRV LX. The construction components of the filter (gasket, frame, and filter) are of good quality. I feel good putting this aftermarket filter in the car for the next 12k-15k miles. I took a picture of this filter next to the filter I replaced for frame/size comparison; it is an exact match. Additionally, the filter was wrapped in sealed plastic, boxed, and came with directions.
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Reviewed in the United States on January 27, 2024
★★★★★ 3
It's ok
Descent
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Reviewed in the United States on April 5, 2026
★★★★★ 5
Game changer for my truck
Size: 1.9" x 9.9" x 11.4"
I installed this K&N Lifetime Cabin Air Filter in my 2016 F-150 and noticed the difference right away. The airflow is stronger, and the cabin smells fresher even when driving through dusty or humid areas. What I really like is that it’s washable and reusable—so I won’t have to keep buying filters every year.
Fitment was perfect and install took under 10 minutes. Just pop out the old one, slide this one in, and you’re good to go. It feels solid and well made, not like those cheap paper ones. It’s definitely worth the investment, especially if you drive a lot or have allergies.
Highly recommend for anyone with a Ford or Lincoln vehicle—it pays for itself quickly!
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Reviewed in the United States on July 3, 2025
★★★★★ 5
Fit 2024 F250 Platinum
Size: 1.9" x 9.9" x 11.4"
Good quality, perfect fit.
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Reviewed in the United States on April 16, 2026
★★★★★ 5
Great
Size: 1.9" x 9.9" x 11.4"
Great value for the money and easy to install.
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Reviewed in the United States on May 10, 2026