MATTCO’s Combination Discharge Dampener (U.S. Patent No. D626,819) offers the synergistic benefits of both the Maintenance-Free and Pneumatic Discharge Dampeners. The combination dampener includes a strainer on the outlet so it takes the place of one pneumatic dampener, one maintenance-free dampener and a strainer cross. As a result, performance is optimized while the weight and footprint are minimized. Premium stainless steel nozzle configurations are available to ensure extremely long service life of the BX ring groove connections. MATTCO Combination Discharge Dampeners are designed and manufactured in the USA. Custom OEM designs and ASME, ABS, CRN, CE and DNV certifications are available.