- Size 10'' Inner circumference: 10.3cm.
- Size 20'' Inner circumference: 11.4cm.
- Size 1812 Slim Line Inner circumference: 7.7cm.
- Size 3013 Inner circumference: 10.8cm.
- Made from durable HDPE plastic.
- Housing wrench for sump housing.
- Various sizing to suit all RO units on the market.