Related Clues:

• Do they keep taps clean?
• Things that may be blown
• Rings in joints
• Nuts-and-bolts accessories
• They might be next to nuts
• Sealing rings
• They're seen around the joint
• Rings in faucets
• Deck protectors
• They may be blown
• Caulks, for instance
• Putty, caulk, etc
• Laundry machines
• Rubber rings
• Seals at pipe joints