Household Ready Fit Reminder: This pack is intended for standard sink drains and setups within the stated 1 1 / 4 inch to 1 1 / 2 inch size specification, helping users confirm fit before setup Everyday Drain Jobs: The hand tighten installation design supports kitchen sink repair, bathroom drain installation, laundry room maintenance, and other routine household drain replacements PP Threaded Slip Joint Build: Each fitting uses PP construction with a ribbed top collar and lower coupling section, so buyers can quickly identify the connection design before installation Size Specific Drain Conversion: This sink drain adapter set connects 1 1 / 4 inch inlet parts to 1 1 / 2 inch outlet components for sink replacement and conversion in common household drain repairs Four Adapters In A Pack: You receive 4 matching reducer fittings for repeat installations, spare parts, or multi sink maintenance, giving this pack broader use across home repair projects, Manufacturer: APGLSXY