HFRAM-Series muffler use strong aluminum housing with polyvinyl foam element. It is compact, light weight and highly effective against noisy exhaust port without excessive back pressure. They are completely non-corrosive and engineered for long service life; cost effectiie design allows insert to be easily replaced at the end of its service life, not the entire muffler. All models are furnished with standard male pipe threads ranging from 1/8" to 1" NPT.

Unit should be mounted in a protective position free from excessive vibration.