ISPRING Single-Handle Stainless Steel Drinking Water Faucet for Reverse ... Food grade 304 Stainless Steel heavy duty construction ensures safety and durability. Anti-rust, anti-corrosion and water spot resistant. Non air gap RO faucet. Cold water supply only. 360-degree swivel spout with 90-degree single lever handle and durable ceramic disc cartridge offer easy water flow control and smooth operation.