Plumb Pak Flex N Fix Extension Coupling 1-1/2 In Plastic Sink Drain PP812-15 Condition: Open box | Unused Plumb Pak plastic extension coupling with original cardboard hang tag. Tag has dirt, creasing, and edge wear from storage, while the white plastic coupling is clean with no installation marks. Brand: Plumb Pak. Item: Flex 'N Fix extension coupling for kitchen/bath sink drains. Size: fits 1-1/2" or 1-1/4"→1-1/2" connections; extends 4-1/2" to 8-1/2". Material: white plastic flexible straight coupling for standard tubular drain pipe. Features: Flex N Fix design, corrosion- and rust-resistant, includes reducer washer to adapt pipe sizes. Model: PP812-15 (Keeney Mfg). UPC: 046224181275. Made in China. Use: replacement/repair for household sink drain plumbing.