ZEAGLE F8 1st Stage and 2nd Stage DIN (350-8320)

First stage has a dry-sealed spring chamber to stop freezing at water temps below 40degF; First stage is coated with flat black chrome plating in order to protect the brass from corroding; Smaller mouthpiece with super soft silicone and color accented tear resistant "Bite" lugs; Exhaust valve with improved dryness and lower exhalation effort; Inhalation effort control knob for better grip and style; Threaded covering for improved safety; Heat sink with improved materials and greater surface area to dissipate cold; Low pressure 2nd stage seat; Zirconium-plated inlet tube for increased corrosion resistance; Redesigned front cover and inhalation effort control knob use co-molded components that provide grippy ease of use; Co-molded silicone mouthpiece for better fit and less jaw fatigue; Redesigned poppet with improved tolerances; Low pressure 2nd stage seat; 2nd stage spring made from super alloy