Toilets and basins are typically made from ceramic (including glazed and high-temperature/industrial-fired variants), earthenware, and plastics. Some basins use high-density plastics with ceramic-glazed surfaces for extra durability.
Basins commonly come in square and pedestal styles. Toilets are offered with round and elongated bowl shapes, including elongated comfort/ergonomic designs.
Basins are offered with single-hole, 4-inch centerset, and 8-inch widespread faucet configurations. Many models also include integrated overflow protection.
Portable sink/toilet combos list typical fresh-water tanks around 4.5 gallons and waste tanks around 5.3 gallons. Noted features include a foot pump, gooseneck faucet, soap dispenser, towel rack, and design for RV or camping portability.
One-piece toilets have the tank and bowl molded together, reducing crevices and making wiping easier. Two-piece toilets have separate tank and bowl—typically high-temperature-fired ceramic with smooth glazed surfaces that resist staining and simplify cleaning.
Descriptions reference siphonic/siphon-jet action and swirl or 360-degree/spiraling flush patterns. These flushing styles are presented as methods to wash the bowl surface and improve waste removal.
Many listings include soft-close (silent-close) seats and lids with damping or dual-damping mechanisms to ensure quiet, gradual closure. Some also offer quick-release/quick-lock seat attachments for easier removal during cleaning.