This Husqvarna 531 30 04-48 chain is a reliable and durable option for your chainsaw. It is compatible with Husqvarna brand and designed to fit 12-inch bar. H37 (91PX) chain type with 45 drive links . The chain is made with high-quality materials and has a 3/8” pitch, and .050 gauge making it suitable for a range of tasks. It comes in a pack of one and is perfect for those who need to replace their old or worn-out chain.