- 1.5" (2.84cm)
- Durable air stones effectively create water currents and dazzling underwater scenes
- Increases surface agitation, oxygenates water
- Helps release carbon dioxide build-up
- Small sizes fit common box filters and undergravel riser stems
- Fits standard airline tubing
Rolf C. Hagen Inc. has its International Headquarters in Montreal, Canada and has wholly owned subsidiaries in the United States, England, France, Germany and Malaysia (South East Asia). Joint ventures include Japan, Korea, Thailand and South Africa, there are also numerous strong partnership agreements in quite a few other countries such as Spain, Mexico, Italy, Australia, New Zealand, Taiwan and the Philipines to name just a few. Rolf C. Hagen Inc. distribution capacity spans the globe to provide the very best in pet supplies to the independent pet trade.