Kupo
Kupo KG040911 Quick Reverse Ear for 30mm Tube
4.5in
Secure and Quick Frame Tube LockingThe Kupo Quick Reverse Ear is designed for easy and secure locking of 30mm square frame tubes. Its quick-release clamping design allows you to lock down the frame tube in seconds without removing the frame corner. Compatibility: 30mm Square Tube Desig...
$119.95*
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*Price sourced from Amazon.com. Last updated:Jun 27, 2026.Price and availability are subject to change.
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Overview
Secure and Quick Frame Tube Locking
The Kupo Quick Reverse Ear is designed for easy and secure locking of 30mm square frame tubes. Its quick-release clamping design allows you to lock down the frame tube in seconds without removing the frame corner.
- Compatibility: 30mm Square Tube
- Design: Quick release clamping
Key Features
SPECIFICATIONS: Quick-release ear designed specifically for securing 30mm square frame tubing in rigging systems.
QUICK-RELEASE DESIGN: Allows fast locking and unlocking of frame tubes without removing frame corners, saving setup time.
SAFETY FEATURES: Integrated safety T-slotted ear helps prevent unexpected drop-off during overhead or elevated use.
COMPATIBILITY: Designed for use with 4.5in grip heads and standard 30mm square tube framing systems.
CONSTRUCTION & : Durable metal construction with Black powder-coated for long-term professional use.
Specifications
Product Type
Quick Reverse Ear
Compatibility (Tube)
30mm square frame tubing
Compatibility (Grip Head)
4.5in grip heads
Design Feature
Quick-release, Integrated safety T-slotted ear
Construction Material
Durable metal
Finish
Black powder-coated
Use Case
Rigging systems, overhead or elevated use
Pros & Cons
👍 Pros
- Specifically designed for securing 30mm square frame tubing, ensuring precise fit.
- Features a quick-release design for fast locking and unlocking of frame tubes, saving setup time.
- Integrated safety T-slotted ear helps prevent unexpected drop-off during overhead or elevated use.
- Constructed from durable metal with a black powder-coating for long-term professional use.
- Compatible with 4.5in grip heads and standard 30mm square tube framing systems.
👎 Cons
- This Quick Reverse Ear is designed only for 30mm square frame tubing and will not fit other sizes.
- Requires a 4.5in grip head for compatibility, which is not included with the product.
- While durable, it is a single component, and a complete rigging system requires additional parts.
- The black powder-coated finish, while durable, may show scratches over extensive professional use.
Frequently Asked Questions
What size tubing is the Kupo KG040911 Quick Reverse Ear designed for?
This Quick Reverse Ear is designed specifically for securing 30mm square frame tubing in rigging systems.
What is the benefit of the quick-release design?
The quick-release design allows for fast locking and unlocking of frame tubes without having to remove frame corners, which helps save valuable setup time.
Does this product include any safety features?
Yes, it features an integrated safety T-slotted ear that helps prevent unexpected drop-off of equipment during overhead or elevated use.
What kind of grip heads is this Quick Reverse Ear compatible with?
It is designed for use with 4.5in grip heads, in addition to standard 30mm square tube framing systems.
What material is the Kupo KG040911 made from?
The Kupo KG040911 is made from durable metal construction with a black powder-coated finish, built for long-term professional use.
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