Internet #205511056

Model #SL728-C

Store SKU #502402

SL728 28 in. Lock-End Extension Spring (0.177 in. No. 7 Wire)

  • Lock-end extension spring with safety containment rod
  • For use with single-panel garage doors, toy hauler doors, etc.
  • 2 x SL728C lift 90-150 lb. door; 4 x SL728C lift 150-300 lb. door
  • See More Details
$1915

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Price:
$1915

Product Overview

The E900 HARDWRARE SL728 28 in. Lock-End Extension Spring is a Holmes spring replacement for most one-piece garage doors. 2 x SL728 springs can handle up to a 150 lb. door while 4 x SL728 springs can handle up to 300 lbs.. SL728 springs are also a popular installment for lifting toy hauler doors.
  • 2 x SL728-C springs support 90 lbs. to 150 lbs. garage doors
  • 4 x SL728-C springs support 150 lbs. to 300 lbs. garage doors
  • Length over coils: 28 in.
  • Outside diameter: 1-5/16 in.
  • Wire gauge: (0.177) #7
  • Initial tension: 110-120
  • Maximum allowable stretch: 18.5 in.
  • Manufacturer warranty: 1-year

Info & Guides

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Specifications

Dimensions

Spring Length
28

Details

Garage Door Part/Accessory Type
Extension Spring
Material
Steel
Returnable
180-Day
Weight Capacity (lbs.)
150

Warranty / Certifications

Manufacturer Warranty
E900 Hardware warrants for a period of one year after purchase, this product against defects in material or workmanship and agrees to repair or at our option replace a part or parts taking in service without charge for either parts or labor.

Questions & Answers

5Questions24Answers

how do I find out if this item is in stock?

Asked by homedepot May 2, 2020
5
Answers

Go to the website and pick your store. do a search for your part and it will tell you how many are at that store.

How do you measure the spring size?

Asked by OMAR April 8, 2019
5
Answers

the 28 is 28 in long.

My old broken Holmes garage door spring was designated "SL728C". Is the "C" important because yo...

Asked by Springcaput March 17, 2017
5
Answers

Yes it is because the c stand for the hook at the end.

Does the SL728 28 IN. LOCK-END EXTENSION SPRING include a safety cable?

Asked by rm61 September 23, 2016
5
Answers

Yes, but I think all do anymore.

the yellow paint on my springs?

Asked by fred January 11, 2016
4
Answers

I installed today and it took 15 my minutes!! Very happy!!

Customer Reviews

  • 153 Customer Reviews
  • 4.8 out of 5 stars overall
96% of customers recommended.
Overall Ratings
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Perfect replacement for older - 40 years old! - Holmes model 1100 hardware that I needed. I orig...
Perfect replacement for older - 40 years old! - Holmes model 1100 hardware that I needed. I originally bought the P728 which said it was the replacement for the SL728c that were OEM with this particular garage door. The P728 with the square end was in stock at my local HD. I figured I could just swap the ends out with the broken one I needed to replace. Well, no such luck. Try as I might, I could unscrew the ends from the new, P728 without risk of damage. I'm pretty sure that I've twisted end pieces out by hand in the past. So, back to HD went the P728 and I found out I could order the SL728. It took a while to get to my local HD but boy, it was sure an easy swap out! And yes, I know we should replace all of these on a door at the same time. But, my whole door is due to be replaced, most likely with a roll up, this spring so, I didn't want to waste the money.
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I used this to make an overhead door for a...
I used this to make an overhead door for a shed I built. Because of the configuration I used I had to modify the angle brackets that attach to the door. Installation took some time but it all worked out great. If I had it to do again I would have bought the same hardware.
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Spring worked excellent!!...
Spring worked excellent!!
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Arrived quickly and installed easily
Arrived quickly and installed easily
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