The faucet unit (without the cartridge) is made of ABS polymers and is highly recyclable.
Biodegradable parts: 74%. The housing (42%) complies with the ASTM D-6400 Standard Specification for Compostable Plastics. The coconut shells (32%) decompose into CO2 and water. Other parts: 26% The silicone (6%) decomposes into amorphous silica (smoke), CO2, and water. UHMW (20%) does not biodegrade, but is inert and stable, and does not accumulate in marine species.