Systemair - RS 100-50 L 3 referenced product produced by high technology. If you need other products from Systemair, please send us an inquiry by e-mail. Our company supply RS 100-50 L 3 referenced product fastest and securest on your request. It produced result of tests of laborotory for years. RS 100-50 L 3 referenced product is an original piece of your foundation or machine, original parts makes your machine live longer.