How It Works
- 1. Position the Gel-Lock® gasket on the male connector.
- 2. Join the male and female plugs as normal.
- 3. Compress the seal so water cannot track into energized contacts.
- 4. Keep the connection elevated and strain-relieved.
Rain Block® Connector Guide
Waterproof Extension Cord Connector
Rain Block® Gel-Lock® gaskets waterproof the male-to-female plug connection and seal both 2-prong and 3-prong connectors.
If rain has ever caused flickering lights or failed outdoor power, this plug interface is the first place to protect.
Why This Is More Consistent
- Consistent compression at the actual connection seam.
- No sticky residue to clean off cords and plugs.
- Reusable for seasonal installs and takedowns.
- Designed specifically for outdoor rain exposure and repeat use.
Why It Works
Gel-Lock® gaskets by Rain Block® create an ultra-compressed seal at the male-to-female plug interface, helping keep water away from energized contacts in outdoor conditions. The extreme compression is the key to consistent waterproofing, preventing moisture from tracking into the connection seam where most weather-related failures occur.
Compressed Interface Seal
The gasket sits between plug ends and compresses where moisture usually gets in.
Fast, Repeatable Setup
Install quickly with repeatable results and reuse across seasonal installs.
Compatibility
Rain Block® Gel-Lock® gaskets work with standard 2-prong and 3-prong plug connections used for holiday lighting, outdoor extension cords, and temporary outdoor power runs.
Where To Use It
Rain Block® works for outdoor extension cord joins used in holiday displays, roofline lighting, yard decor, temporary patio power, and other exposed seasonal connections.
It is best for plug-to-plug unions that are exposed to rain, splash, irrigation overspray, and freeze-thaw weather cycles.
What To Do Before Storms
Check that each plug pair is fully seated, confirm the gasket is compressed at the interface, and keep connections elevated from low spots where water can collect. A 60-second pre-storm check prevents most weather-related lighting failures.
Rain Block® Gel-Lock® gaskets were also tested fully submerged in water for one week with no failure.
Built for Professional Installers
Designed for real job conditions, long nights, and weather-exposed setups where reliability matters.
- Helps prevent water-related failures
- Faster and more consistent than ad-hoc DIY wrapping
- Clean, repeatable installs
- Reusable across seasons
- Fewer callbacks and service visits
- Trusted by contractors nationwide
Works Everywhere
From holiday lighting to job sites, Rain Block® Gel-Lock® gaskets protect outdoor plug connections where moisture causes failures.
Holiday Lighting & Decorations
Keep roofline lights, yard decor, and seasonal displays running through rain and snow.
Job Sites
Protect temporary power runs for tools and equipment in wet, muddy conditions.
Outdoor Appliances
Add plug-interface protection for outdoor kitchens, fountains, and patio systems.
Agricultural Operations
Support weather-exposed connections for irrigation and farm equipment power.
Why Pros Choose Rain Block®
Fast Install
Seal each plug connection in seconds with minimal cleanup.
Reusable
Built for repeated seasonal installs and takedowns.
Weather-Ready
Designed for rain exposure and outdoor electrical reliability.
Customer Proof
Customer feedback from real outdoor installs.
Ryan Henson
★★★★★Works Well
Reviewed in the United States on December 14, 2025
Item Package Quantity: 10
"I have used these for about 4 years and they really help prevent shorting. They helped minimize breaker flips across multiple Christmas light displays."
One person found this helpful
Customer review
Leo
★★★★★These work great!
Reviewed in the United States on January 29, 2025
Item Package Quantity: 50
"These saved my outdoor display after heavy rains. I installed them and did not have a single issue with tripping circuits after that."
2 people found this helpful
Customer review
AM
★★★★★Great product..!
Reviewed in the United States on November 22, 2018
Item Package Quantity: 50
"Very flexible, easy to install, and they absolutely work. After switching to these gaskets I ran into no weather-related issues."
35 people found this helpful
Customer review
Prime#
★★★★☆Pricey but does the job well
Reviewed in the United States on November 27, 2017
Item Package Quantity: 50
"The product works great and my breakers have not kicked off in rain. Soft gel seal material keeps water out when the connection is good."
22 people found this helpful
Customer review
goddessnna
★★★★★Worked!
Reviewed in the United States on January 22, 2025
Item Package Quantity: 50
"It rained and snowed and I did not trip the breaker once. The year before, without these, it did trip."
Customer review
jaxops
★★★★★Very Cool
Reviewed in the United States on March 3, 2024
Item Package Quantity: 10
"I use it for my pool pump to an outdoor outlet. Keeps the rain out and I do not get a short anymore."
2 people found this helpful
Customer review
Susan M. Kelly
★★★★★These are easy to use and work.
Reviewed in the United States on March 19, 2022
Item Package Quantity: 50
"Great for outdoor holiday decorations and winter equipment in rain, freezing rain, snow, and ice. Excellent protection for exposed hanging plug connections."
3 people found this helpful
Customer review
SZee
★★★☆☆Minimal peace of mind
Reviewed in the United States on February 18, 2023
Item Package Quantity: 10
"Using these for outdoor LED string lights and have had no issues so far."
2 people found this helpful
Customer review
Bort
★★★★★LIGHT STRINGS DON'T SHORT OUT!
Reviewed in the United States on December 10, 2019
Item Package Quantity: 10
"These saved my sanity in rainy PNW winters. My 20+ outdoor light strings kept shorting, and these gummy but sturdy gaskets kept heavy rainwater out."
One person found this helpful
Customer review
Happy Shopper
★★★★★These are wonderful and they do work!
Reviewed in the United States on October 9, 2018
Item Package Quantity: 50
"I added these to every outdoor plug connection and after months of heavy rain, I have not had breaker kick-offs."
13 people found this helpful
Customer review
Stuart A. Joynt
★★★★★Good product
Reviewed in the United States on June 20, 2019
Item Package Quantity: 10
"Used these on a farm extension cord setup to keep charging equipment protected from weather. Works well with outdoor connection protection."
3 people found this helpful
Customer review
Ryan Henson
★★★★★Works Well
Reviewed in the United States on December 14, 2025
Item Package Quantity: 10
"I have used these for about 4 years and they really help prevent shorting. They helped minimize breaker flips across multiple Christmas light displays."
One person found this helpful
Customer review
Leo
★★★★★These work great!
Reviewed in the United States on January 29, 2025
Item Package Quantity: 50
"These saved my outdoor display after heavy rains. I installed them and did not have a single issue with tripping circuits after that."
2 people found this helpful
Customer review
AM
★★★★★Great product..!
Reviewed in the United States on November 22, 2018
Item Package Quantity: 50
"Very flexible, easy to install, and they absolutely work. After switching to these gaskets I ran into no weather-related issues."
35 people found this helpful
Customer review
Prime#
★★★★☆Pricey but does the job well
Reviewed in the United States on November 27, 2017
Item Package Quantity: 50
"The product works great and my breakers have not kicked off in rain. Soft gel seal material keeps water out when the connection is good."
22 people found this helpful
Customer review
goddessnna
★★★★★Worked!
Reviewed in the United States on January 22, 2025
Item Package Quantity: 50
"It rained and snowed and I did not trip the breaker once. The year before, without these, it did trip."
Customer review
jaxops
★★★★★Very Cool
Reviewed in the United States on March 3, 2024
Item Package Quantity: 10
"I use it for my pool pump to an outdoor outlet. Keeps the rain out and I do not get a short anymore."
2 people found this helpful
Customer review
Susan M. Kelly
★★★★★These are easy to use and work.
Reviewed in the United States on March 19, 2022
Item Package Quantity: 50
"Great for outdoor holiday decorations and winter equipment in rain, freezing rain, snow, and ice. Excellent protection for exposed hanging plug connections."
3 people found this helpful
Customer review
SZee
★★★☆☆Minimal peace of mind
Reviewed in the United States on February 18, 2023
Item Package Quantity: 10
"Using these for outdoor LED string lights and have had no issues so far."
2 people found this helpful
Customer review
Bort
★★★★★LIGHT STRINGS DON'T SHORT OUT!
Reviewed in the United States on December 10, 2019
Item Package Quantity: 10
"These saved my sanity in rainy PNW winters. My 20+ outdoor light strings kept shorting, and these gummy but sturdy gaskets kept heavy rainwater out."
One person found this helpful
Customer review
Happy Shopper
★★★★★These are wonderful and they do work!
Reviewed in the United States on October 9, 2018
Item Package Quantity: 50
"I added these to every outdoor plug connection and after months of heavy rain, I have not had breaker kick-offs."
13 people found this helpful
Customer review
Stuart A. Joynt
★★★★★Good product
Reviewed in the United States on June 20, 2019
Item Package Quantity: 10
"Used these on a farm extension cord setup to keep charging equipment protected from weather. Works well with outdoor connection protection."
3 people found this helpful
Customer review
Common Questions
Is an outdoor-rated extension cord by itself enough?
Not usually. Outdoor cords are weather-resistant, but the plug connection seam is still the most common moisture entry point.
Does the gasket go around the plug body?
No. Rain Block® Gel-Lock® gaskets sit between the male and female plug ends and compress at the interface.
Will this work with both 2-prong and 3-prong connections?
Yes. One Rain Block® Gel-Lock® gasket type handles both.
Ready To Protect Your Outdoor Connections?
Start with Rain Block® Gel-Lock® gaskets and stop weather-related connection failures before your next storm.
Works with 2-prong and 3-prongReusable for seasonal installsBuilt for outdoor weather