The Altman Gridiron Junction Box is a surface mount electrical device which is usually attached to the grid. It is used to connect wires within a conduit to the multi-conductor flexible cable which feeds strip lighting or connector strip devices. These boxes are available in many sizes and may be placed anyplace that requires wire connections.

18 Gauge Enclosure    30 Circuit, 60 Wire    Includes Mounting Hardware    Multiple Knockouts

18 gauge steel enclosure provided with a plurality of knockouts

All mounting hardware included

Available in a multitude of sizes

Barrier type terminal strips provided for fast, neat connections

Baked epoxy sandtex, electrostatic application finish

U.L. listed

Made in the USA

Related Questions and Answers

Q: 1. Can this clamp be mounted on a Vanguard SBH-100 ball head?

A: It has not been tested. But technically it should fit.

Q: 2. Can this clamp be mounted on a Giottos MH5400 ball head?

A: Hi Dana, That's a hard one to answer because you need to know how the current clamp is mounted to the Giottos ball head. Some manufacturers use the same mounting scheme so you can swap them out, others have a unique mounting. the only way to know is to take off the existing clamp. Check out how the Wimberley clamp mounts to the ball head by going to the C12 clamp page on the BH site and click on the second picture. The first thing I would do before buying a clamp is to remove the existing one to see how it mounts. This will help you because now you can take a picture of the Giottos mount and if you call B&H at least you'd be able to send the picture to them so they could help you make sure you're buying the right part. I'm hopeful this might save you the time and hassle and expense of going back and forth if this one proves to not fit the mount on your ball head. P.S. The manufacturers mount the clamps using Locktite, they are mounted on real good and it takes the exact right tool and some muscle to get the original clamps to break free. Make sure you have the right tools so you don't compromise your existing ball head.

Q: 3. Is this lens a manual zoom or automatic zoom?

A: Manual zoom, auto focus

Q: 4. Is Canon 18-135mm f/3.5-5.6 IS STM lens compatible with Canon 600D?

A: Yes, this lens is fully compatible with the Canon EOS 600D/T3i camera.

Q: 5. Which bodies does this lens come with as a kit? (I keep seeing it referenced as a kit lens)

A: The Canon EF-S 18-135mm f/3.5-5.6 lens comes as a kit lens with numerous Canon bodies, including the 60D http://bhpho.to/J6Nvyk, 70D http://bhpho.to/1kOY73r, 7D http://bhpho.to/1jxB67P, Rebel T5i http://bhpho.to/JHx38k, and Rebel T3i http://bhpho.to/1zIJfeF.

Q: 6. Does it work with CANON EOS 40D

A: Yes, the lens is 100% compatible with the 40D.

Q: 7. Is this lens weather sealed?

A: No, the Canon EF-S 18-135mm f/3.5-5.6 IS STM Lens is not a weather-sealed lens.

Q: 8. I have only used level type Arca Swiss type releases. How do you prevent a twist type from coming loose?

A: The twist knob in the Wimberley C-12 Quick Release Clamp (2.5", 6.4 cm Long) does not get loose on its own. It takes many turns of the knob to open and close the clamp. You don't need to do anything special to keep it from unscrewing on its own.

Q: 9. Does this lens comes with a lens hood?

A: No, it does not. It is an excellent lens though.

Q: 10. Will this work on the Novoflex MagicBall 50?

A: Yes.