Related Clues:

• Radiator features
• O-rings, e.g.
• Caulks
• Seats for heads of bolts
• Plumber's rubber rings
• Gaskets' kin
• Tar and oakum
• Laundromat lineup
• They have loads of work to do
• Dryers' partners
• Caulking materials
• Laundromat machines
• Load-bearing things?
• Flat, round seals
• They have loads to do