Junction box extender for approved electrical penetration in wet areas! Twist is the optimal junction box extender that makes it possible to seal around the box, thereby creating an approved electrical penetration in wet areas (requirements from BKR and GVK). With Twist, the box sits flush with the outer edge of the wall, which makes mounting a device box easier. By trimming the thread, you can easily install Twist using the ears on the inside of an existing device box. And just like that, you have an adjustable box! It doesn’t get much easier than that. Twist is similar to products such as junction box extenders, build-up rings, spacer rings, height rings, and telescopic rings. Features:Adjustable to fit 27–42 mm depth. Easy installation: Twist is placed so that the box sits flush with the outer edge of the wall. By cutting the thread, the length can be easily adjusted. Easily installed in an existing device box using the ears on the inside.