This links up to other Steam blocks and can conduct steam power. It's actually 2 unconnected pipes - one runs from left to down, and the other runs from up to right. Use this to keep steam from going places you don't want!
Steam Crossover price in Growtopia: sells for about 2/WL (median of 6 offers from community Discords, past 30 days). Live price chart and the latest buy and sell offers.
Recently sold at: 9N5S, 3OHI, HRQD, QALDEN, MORNYE