Automatic Greenhouse & Sunroom Temperature Control Window Opener with Single/Double Spring

Experience optimal temperature regulation in your greenhouse or sunroom with this advanced window opener. Designed with precision, it features a durable single or double spring mechanism that automatically adjusts to changing temperatures, ensuring a consistent and comfortable environment for your plants or relaxation space. Easy to install and highly efficient, it operates without the need for electricity, relying instead on the natural expansion and contraction of its components. Keep your spaces ventilated and energy-efficient effortlessly with this innovative solution. Style: Modern and simple Manufacture country: China Instructions included: No