In the offer we have two spindle sliders that have never been used. The & nbsp;Spindle Slider is the premium stainless steel shut-off and regulating valve and is used and knows weather-related wear. The sliders were never in use or installed. They have been located at the sewage treatment plant since they were purchased and are waiting for use.   Product features and technical details:  Compact fitting with closed frame construction for docking on the wall Non-rising spindle and integrated spindle bearing Rotating spindle nut Wall seal fixed ready for operation on the frame Patented VAG sliding wedge system of the sliding plate in the frame Slider plate guided over the entire stroke vibration-free, can be used in intermediate positions as a regulating valve Improved tightness by locking system between sliding plate and upper cross beam (size 700x700...1800x1800) Integrated and chambered profile seal Sealing system/standard: Sealing quadrulateral tightness: max. 1% (in case of printing on the front) and max. 3% (in the case of pressure on the back) of the leakage rate according to DIN 19569 part 4 Square shape for docking on the wall   Material consists of:  Spindle: stainless steel 1.4057 Spindle nut: zinc-free bronze (water resistant) Frame construction: A2 stainless steel Sliding plate: A2 stainless steel   Dimensions:  Size 400x400/ 1200x1200