Change Over CISA 30 The CISA change over systems are designed for use with pure gases and liquid corrosive gases in laboratories. Highly recommended for uses in harsh external environments. Contact an expert Description Related pages Contact us Description Continuous gas delivery system of pipe network Connection of 2x1 or 2x2 cylinders of ammonia Suitable for ammonia Made of stainless steel Automatic switch with reset Contact an expert Related pages ALPHAGAZ™ - Specialty gases and calibration mixtur ... The ALPHAGAZ™ range includes high quality pure gases and spe ... Read more Research & analysis Discover a complete of pure gases and mixtures for your rese ... Read more Gas mixtures - Mixture guide Search and choose your gas mixture according to application, ... Read more LABTOP™ - calibration gas cylinder with built in r ... The new generation of bottles, specially developed for your ... Read more Do you have any questions about specialty gas equipment? Please complete our contact form below and we'll come back to you as soon as possible. You must have JavaScript enabled to use this form. Your request Account number Name Job title Email Phone number Company Post code Leave this field blank