Search  for anything...

Johnson Level & Tool 3878 Magnetic Professional Aluminum Level, 78", Black, 1 Level,Yellow

  • Based on 290 reviews
Condition: New
Checking for product changes

Buy Now, Pay Later


As low as $14.83 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by ZAFAG Distributors

Arrives Dec 31 – Jan 2
Order within 17 hours and 33 minutes
Available payment plans shown during checkout

Size: 78 Inch


Features

  • MAGNETIC LEVEL: The leveler features a strong holding magnetic edge that allows hand-free use on the ferrous metal surface for added convenience.
  • QUALITY CONSTRUCTION: The carpenter's level features a heavy-duty aluminum frame that promises to withstand the harsh impacts at the job site; delivering unparalleled performance.
  • ACRYLIC VIALS: The magnetic box level features easy-read replaceable acrylic vials made of impact-resistant material for maximum durability.
  • SMART DESIGN: The aluminum box level has a top-read window that maximizes readability; allowing you to access reading from any angle.
  • USER-FRIENDLY: The 78 in. I-beam level has replaceable cover plates and three vials that make it easy to use and a must-have for most professionals.

Description

Johnson's 3800 I-beam level was designed to be durable and easy to use - so much so that it has been the standard in the industry for over 30 years. Its heavy duty aluminum frame ensures accuracy and is durable enough to withstand even the roughest jobsite abuse, and that frame is protected by shock absorbing end caps if the level is accidentally dropped. The level also comes equipped with replaceable, durable acrylic vials that are impact resistant along with a top read window allowing the user to stand over the work to view the vials. This level's strong magnetic edge provides hands- free use on ferrous metal surfaces. From the Manufacturer Extruded aluminum I-beam with black anodized finish. Computer machined level edge with strong, full-length magnetic strip. 360 degree reading acrylic yellow barrel vials. Screw-on, high-impact resistant plastic covers with protective lenses. Large, patented, magnified top-read window. Shock-protecting end caps. Frame dimensions: 1 In. x 2-1/4 In.


Brand: Johnson


Material: Aluminum, Metal, Acrylic


Color: Yellow


Item Dimensions LxWxH: 1 x 2.25 x 78 inches


Style: 78 Inch


Brand: ‎Johnson


Material: ‎Aluminum, Metal, Acrylic


Color: ‎Yellow


Item Dimensions LxWxH: ‎1 x 2.25 x 78 inches


Style: ‎78 Inch


Item Weight: ‎4.24 Pounds


Operation Mode: ‎Manual


Manufacturer: ‎Johnson Level & Tool


Part Number: ‎3878


Item Weight: ‎4.24 pounds


Product Dimensions: ‎1 x 2.25 x 78 inches


Item model number: ‎3878


Is Discontinued By Manufacturer: ‎No


Size: ‎78 Inch


Power Source: ‎Hand_powered


Item Package Quantity: ‎1


Special Features: ‎magnetic


Included Components: ‎Aluminum Level


Batteries Included?: ‎No


Batteries Required?: ‎No


Warranty Description: ‎Lifetime Accuracy Warranty Johnson Level warrants this product against defects in material and workmanship for life. The company will replace or repair the product if it fails under normal use. Bent level frames void warranty. This warranty is limited to the repair or replacement of the product only.


Date First Available: June 8, 2005


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Dec 31 – Jan 2

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • nice quality level
Size: 36 Inch
seems nice and straight, solid, well made!
Reviewed in the United States on May 22, 2023 by thomas v baxter

  • Very Accurate level
Size: 48 Inch Contractor Aluminum Level
I have several levels of different sizes and quality. When I need something level as accurately as possible, I go to the Johnson level.
Reviewed in the United States on March 23, 2023 by Gilbert Vega

  • My job
Size: 78 Inch
I like easy to use working better nice stuff not too heavy I recommended
Reviewed in the United States on June 3, 2022 by Valente

  • Great tool to have in one’s kit, and good value for the money
Size: 36 Inch
This level appears to be manufactured with precision, and to be accurate and sturdy. I used it initially to assist in the relocation of a towel rack in one of my bathrooms that a guest had incorrectly used as grab bar, and pulled out of the wall. The old one had been sloppily or hastily installed anyway, and as a result, was not close to being level. With the aid of this tool, I marked the location for the screw holes 24 inches apart and reinstalled the rack perfectly level. I next used it to install a series of knob pulls on some kitchen cabinet drawers. Although I measured down from the lip of the drawer ends (2 per drawer) using a plastic template, I double checked and adjusted the drill holes very slightly with the level, to allow for the fact that the drawer itself was not perfectly horizontal. This way to the naked eye, the pulls looked perfectly lined up. The 3 foot length was perfect for both of these jobs, and was a size not readily available in retail stores. I’m a happy camper! ... show more
Reviewed in the United States on November 6, 2016 by Butch Simmz

  • Great Level, Mildly Magnetic
Size: 36 Inch
I purchased the level for the purpose of installing a 30 in. safety/grab bar horizontally in a shower stall that is too small to use my 48 in. level. For this purpose it worked perfectly. I found the magnetic function to be only "mildly" magnetic IMO.
Reviewed in the United States on February 12, 2022 by Brian M.

  • Made in the USA
Size: 36 Inch
I was looking for a decent quality 36" level that wasn't made in China and really didn't want to pay for a Stabila or Sola level. I somehow stumbled across this level that is made in the USA and for $27. It's lightweight aluminum I-beam body makes it very light and the magnetic is strong enough to hold itself to any ferrous metal. The vials are easy to read. I recommend this level who wants a quality level and doesn't like supporting slave labor in China. ... show more
Reviewed in the United States on December 15, 2020 by Indiana Annie

  • On the Level
Size: 36 Inch
This product is well made and was the perfect length (3') for my sons professional electronic installation work.
Reviewed in the United States on July 16, 2022 by Robert

  • Nice length light weight
Size: 36 Inch
It has a nice strong magnet. I am storing it against the magnet on steel It seems pretty rugged, I used it for a few days and dropped it a lot seems real sturdy
Reviewed in the United States on April 1, 2021 by Mark Wieneke

Can't find a product?

Find it on Amazon first, then paste the link below.