The Alcadrain APZ1-850 is a stainless steel shower drain with a length of 850 mm, designed for installation with grate systems. Made from high-quality AISI 304 stainless steel, it features surface treatment through pickling, passivation, and electrochemical polishing for enhanced durability and corrosion resistance. It includes an integrated side-inlet shower drain system with 100 percent waterproof design using self-adhesive sealing foil for reliable tightness. The adjustable vertical insulation collar accommodates tile thicknesses from 6 to 12 mm, with a minimum construction height starting at 85 mm and a total adjustable height of 100 to 158 mm. It features a mechanically cleanable siphon system with two chambers, allowing high flow rates of 60 to 68.8 liters per minute while maintaining a consistent odor seal. The 50 mm diameter drainage pipe has a pressure-resistant odor trap with a load capacity of 982 Pa. The load capacity meets class K3, supporting up to 300 kg, making it suitable for use in wheelchair-accessible installations. The complete installation package includes a pre-assembled drain with siphon, mounting kit with screws and dowels, sealing foil, protective foils for the collar and siphon inlet, installation cover, and adjustable foot mounts. The polypropylene siphon material ensures long-term reliability. Designed for indoor use in level-access shower drainage applications, it is suitable for installation in room centers or close to walls with grate systems.